Merge pull request #469 from ClimateImpactLab/dependabot/github_actions/actions/cache-5

Bump actions/cache from 4 to 5

Author: brews

.github/workflows/docs.yaml

@@ -15,7 +15,7 @@ jobs:
         with:
           python-version: 3.x
       - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           key: mkdocs-material-${{ env.cache_id }}
           path: .cache