chore(deps): update actions/cache action to v5 (#399)

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

Author: renovate[bot]

.github/workflows/ci.yml

@@ -77,7 +77,7 @@ jobs:
       # see: https://squidfunk.github.io/mkdocs-material/publishing-your-site/#with-github-actions
       # weekly cache updates
       - run: echo "cache_id=$(date --utc '+%V')" >> "$GITHUB_ENV"
-      - uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+      - uses: actions/cache@9255dc7a253b0ccc959486e2bca901246202afeb # v5.0.1
         with:
           # weekly cache
           key: mkdocs-material-${{ env.cache_id }}

.github/workflows/deploy.yml

@@ -41,7 +41,7 @@ jobs:
       # see: https://squidfunk.github.io/mkdocs-material/publishing-your-site/#with-github-actions
       # weekly cache updates
       - run: echo "cache_id=$(date --utc '+%V')" >> "$GITHUB_ENV"
-      - uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+      - uses: actions/cache@9255dc7a253b0ccc959486e2bca901246202afeb # v5.0.1
         with:
           key: mkdocs-material-${{ env.cache_id }}
           path: .cache