fix: usage of `node12 which is deprecated` (#8709)

.github/workflows/locales-coverage.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           token: ${{ secrets.PUSH_TRANSLATIONS_COVERAGE_PAT }}