chore(deps): update actions/cache digest to 8b402f5 (#848)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/docs.yaml

@@ -38,7 +38,7 @@ jobs:
         run: |
           echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
       - name: handle cache
-        uses: actions/cache@9255dc7a253b0ccc959486e2bca901246202afeb # v5
+        uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5
         with:
           key: mkdocs-material-${{ env.cache_id }}
           path: .cache