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

Author: renovate[bot]

.github/workflows/push-locize.yaml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     environment: "CD"
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Set up Python
       uses: actions/setup-python@v5