refactor: remove deprecated version-file-parser action

Remove version-file-parser after successful inlining into node-setup:
- Delete version-file-parser action directory
- Delete version-file-parser unit and integration tests
- Remove version-file-parser references from spec_helper.sh
- Remove version-file-parser path trigger from node-setup-test.yml
- Regenerate action catalog (29 actions, down from 30)

All version detection functionality now inlined into individual actions:
- go-build: Go version detection
- csharp-build/csharp-lint-check/csharp-publish: .NET version detection
- python-lint-fix: Python version detection
- php-laravel-phpunit: PHP version detection
- node-setup: Node.js version detection and package manager detection

Reduces external dependencies and improves initialization performance across all actions.

_tests/unit/spec_helper.sh

@@ -114,11 +114,6 @@ setup_default_inputs() {
   "validate-inputs")
     [[ "$input_name" != "action-type" && "$input_name" != "action" && "$input_name" != "rules-file" && "$input_name" != "fail-on-error" ]] && export INPUT_ACTION_TYPE="test-action"
     ;;
-  "version-file-parser")
-    [[ "$input_name" != "language" ]] && export INPUT_LANGUAGE="node"
-    [[ "$input_name" != "tool-versions-key" ]] && export INPUT_TOOL_VERSIONS_KEY="nodejs"
-    [[ "$input_name" != "dockerfile-image" ]] && export INPUT_DOCKERFILE_IMAGE="node"
-    ;;
   "codeql-analysis")
     [[ "$input_name" != "language" ]] && export INPUT_LANGUAGE="javascript"
     [[ "$input_name" != "token" ]] && export INPUT_TOKEN="ghp_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
@@ -185,11 +180,6 @@ cleanup_default_inputs() {
   "validate-inputs")
     [[ "$input_name" != "action-type" && "$input_name" != "action" && "$input_name" != "rules-file" && "$input_name" != "fail-on-error" ]] && unset INPUT_ACTION_TYPE
     ;;
-  "version-file-parser")
-    [[ "$input_name" != "language" ]] && unset INPUT_LANGUAGE
-    [[ "$input_name" != "tool-versions-key" ]] && unset INPUT_TOOL_VERSIONS_KEY
-    [[ "$input_name" != "dockerfile-image" ]] && unset INPUT_DOCKERFILE_IMAGE
-    ;;
   "codeql-analysis")
     [[ "$input_name" != "language" ]] && unset INPUT_LANGUAGE
     [[ "$input_name" != "token" ]] && unset INPUT_TOKEN
@@ -244,10 +234,6 @@ shellspec_mock_action_run() {
   action_name=$(basename "$action_dir")
 
   case "$action_name" in
-  "version-file-parser")
-    echo "detected-version=1.0.0" >>"$GITHUB_OUTPUT"
-    echo "package-manager=npm" >>"$GITHUB_OUTPUT"
-    ;;
   "node-setup")
     echo "node-version=18.0.0" >>"$GITHUB_OUTPUT"
     echo "package-manager=npm" >>"$GITHUB_OUTPUT"

_tests/unit/version-file-parser/validation.spec.sh

@@ -1,125 +0,0 @@
-#!/usr/bin/env shellspec
-# Unit tests for version-file-parser action validation and logic
-# Framework is automatically loaded via spec_helper.sh
-
-Describe "version-file-parser action"
-  ACTION_DIR="version-file-parser"
-  ACTION_FILE="$ACTION_DIR/action.yml"
-
-  Context "when validating language input"
-    It "accepts valid language input"
-      When call validate_input_python "version-file-parser" "language" "node"
-      The status should be success
-    End
-    It "accepts php language"
-      When call validate_input_python "version-file-parser" "language" "php"
-      The status should be success
-    End
-    It "accepts python language"
-      When call validate_input_python "version-file-parser" "language" "python"
-      The status should be success
-    End
-    It "accepts go language"
-      When call validate_input_python "version-file-parser" "language" "go"
-      The status should be success
-    End
-    It "rejects invalid language with special characters"
-      When call validate_input_python "version-file-parser" "language" "node; rm -rf /"
-      The status should be failure
-    End
-    It "rejects empty required inputs"
-      When call validate_input_python "version-file-parser" "language" ""
-      The status should be failure
-    End
-  End
-
-  Context "when validating dockerfile-image input"
-    It "accepts valid dockerfile image"
-      When call validate_input_python "version-file-parser" "dockerfile-image" "node"
-      The status should be success
-    End
-    It "accepts php dockerfile image"
-      When call validate_input_python "version-file-parser" "dockerfile-image" "php"
-      The status should be success
-    End
-    It "accepts python dockerfile image"
-      When call validate_input_python "version-file-parser" "dockerfile-image" "python"
-      The status should be success
-    End
-    It "rejects injection in dockerfile image"
-      When call validate_input_python "version-file-parser" "dockerfile-image" "node;malicious"
-      The status should be failure
-    End
-  End
-
-  Context "when validating optional inputs"
-    It "accepts valid validation regex"
-      When call validate_input_python "version-file-parser" "validation-regex" "^[0-9]+\.[0-9]+(\.[0-9]+)?$"
-      The status should be success
-    End
-    It "accepts valid default version"
-      When call validate_input_python "version-file-parser" "default-version" "18.0.0"
-      The status should be success
-    End
-    It "accepts tool versions key"
-      When call validate_input_python "version-file-parser" "tool-versions-key" "nodejs"
-      The status should be success
-    End
-  End
-
-  Context "when checking action.yml structure"
-    It "has valid YAML syntax"
-      When call validate_action_yml_quiet "$ACTION_FILE"
-      The status should be success
-    End
-
-    It "contains required metadata"
-      When call get_action_name "$ACTION_FILE"
-      The output should equal "Version File Parser"
-    End
-
-    It "defines expected inputs"
-      When call get_action_inputs "$ACTION_FILE"
-      The output should include "language"
-      The output should include "tool-versions-key"
-      The output should include "dockerfile-image"
-    End
-
-    It "defines expected outputs"
-      When call get_action_outputs "$ACTION_FILE"
-      The output should include "detected-version"
-      The output should include "package-manager"
-    End
-  End
-
-  Context "when validating security"
-    It "rejects injection in language parameter"
-      When call validate_input_python "version-file-parser" "language" "node&&malicious"
-      The status should be failure
-    End
-
-    It "rejects pipe injection in tool versions key"
-      When call validate_input_python "version-file-parser" "tool-versions-key" "nodejs|dangerous"
-      The status should be failure
-    End
-
-    It "validates regex patterns safely"
-      When call validate_input_python "version-file-parser" "validation-regex" "^[0-9]+\.[0-9]+$"
-      The status should be success
-    End
-
-    It "rejects malicious regex patterns"
-      When call validate_input_python "version-file-parser" "validation-regex" ".*; rm -rf /"
-      The status should be failure
-    End
-  End
-
-  Context "when testing outputs"
-    It "produces all expected outputs consistently"
-      When call test_action_outputs "$ACTION_DIR" "language" "node" "dockerfile-image" "node"
-      The status should be success
-      The stderr should include "Testing action outputs for: version-file-parser"
-      The stderr should include "Output test passed for: version-file-parser"
-    End
-  End
-End