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.

validate-inputs/tests/test_version-file-parser_custom.py

@@ -1,74 +0,0 @@
-"""Tests for version-file-parser custom validator.
-
-Generated by generate-tests.py - Do not edit manually.
-"""
-# pylint: disable=invalid-name  # Test file name matches action name
-
-import sys
-from pathlib import Path
-
-# Add action directory to path to import custom validator
-action_path = Path(__file__).parent.parent.parent / "version-file-parser"
-sys.path.insert(0, str(action_path))
-
-# pylint: disable=wrong-import-position
-from CustomValidator import CustomValidator
-
-
-class TestCustomVersionFileParserValidator:
-    """Test cases for version-file-parser custom validator."""
-
-    def setup_method(self):
-        """Set up test fixtures."""
-        self.validator = CustomValidator("version-file-parser")
-
-    def teardown_method(self):
-        """Clean up after tests."""
-        self.validator.clear_errors()
-
-    def test_validate_inputs_valid(self):
-        """Test validation with valid inputs."""
-        # TODO: Add specific valid inputs for version-file-parser
-        inputs = {}
-        result = self.validator.validate_inputs(inputs)
-        # Adjust assertion based on required inputs
-        assert isinstance(result, bool)
-
-    def test_validate_inputs_invalid(self):
-        """Test validation with invalid inputs."""
-        # TODO: Add specific invalid inputs for version-file-parser
-        inputs = {"invalid_key": "invalid_value"}
-        result = self.validator.validate_inputs(inputs)
-        # Custom validators may have specific validation rules
-        assert isinstance(result, bool)
-
-    def test_required_inputs(self):
-        """Test required inputs detection."""
-        required = self.validator.get_required_inputs()
-        assert isinstance(required, list)
-        # TODO: Assert specific required inputs for version-file-parser
-
-    def test_validation_rules(self):
-        """Test validation rules."""
-        rules = self.validator.get_validation_rules()
-        assert isinstance(rules, dict)
-        # TODO: Assert specific validation rules for version-file-parser
-
-    def test_github_expressions(self):
-        """Test GitHub expression handling."""
-        inputs = {
-            "test_input": "${{ github.token }}",
-        }
-        result = self.validator.validate_inputs(inputs)
-        assert isinstance(result, bool)
-        # GitHub expressions should generally be accepted
-
-    def test_error_propagation(self):
-        """Test error propagation from sub-validators."""
-        # Custom validators often use sub-validators
-        # Test that errors are properly propagated
-        inputs = {"test": "value"}
-        self.validator.validate_inputs(inputs)
-        # Check error handling
-        if self.validator.has_errors():
-            assert len(self.validator.errors) > 0