chore(deps): pin dependencies (#11)

.github/workflows/main.yml

@@ -16,18 +16,18 @@ jobs:
 
     steps:
     # Check out repository under $GITHUB_WORKSPACE, so the job can access it
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
 
     # Run using Python 3.8 for consistency and aiohttp
     - name: Set up Python 3.8
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38 # v5
       with:
         python-version: '3.8'
         architecture: 'x64'
 
     # Cache dependencies. From:
     # https://github.com/actions/cache/blob/master/examples.md#python---pip
-    - uses: actions/cache@v4
+    - uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}