[GH-Actions][pages-renovate] Add fetch-depth

.github/workflows/renovate_check-build.yml

@@ -11,6 +11,7 @@ jobs:
         uses: actions/checkout@v2.4.0
         with:
           token: '${{ secrets.GHPAGES_ACTION_CHECKOUT_TOKEN_PAT }}'
+          fetch-depth: '0' # https://github.com/timvink/mkdocs-git-revision-date-localized-plugin#note-when-using-build-environments
 
       - name: Install dependencies 🐄
         run: |