chore(deps): update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
         uses: e1himself/[email protected]
 
       - name: 📦 Check out the codebase
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           fetch-depth: 0
 

.github/workflows/sync-from-tpl.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: 📦 Check out the codebase
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           token: ${{ secrets.WORKFLOW_TOKEN }}