Update action version comments to use specific tags (#150)

Author: Copilot

.github/workflows/codspeed.yml

@@ -38,7 +38,7 @@ jobs:
         run: uv sync --dev
 
       - name: Run benchmarks
-        uses: CodSpeedHQ/action@346a2d8a8d9d38909abd0bc3d23f773110f076ad #v3
+        uses: CodSpeedHQ/action@346a2d8a8d9d38909abd0bc3d23f773110f076ad # v4.4.1
         with:
           token: ${{ secrets.CODSPEED_TOKEN }}
           run: uv run pytest tests/ --codspeed

.github/workflows/update-versions.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v6 # v6.0.0
       with:
         token: ${{ secrets.GITHUB_TOKEN }}