Bump actions/cache from 4 to 5 (#9168)

Author: dependabot[bot]

.github/workflows/test-report.yaml

@@ -35,7 +35,7 @@ jobs:
       - name: mamba list
         run: mamba list
 
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         id: cache
         with:
           # Suffix is depending on the backend / OS. Let's be agnostic here

.github/workflows/tests.yaml

@@ -145,7 +145,7 @@ jobs:
 
       - name: Cache Conda env
         if: steps.skip-caching.outputs.trigger-found != 'true'
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ env.CONDA }}/envs
           key: conda-${{ matrix.os }}-${{ matrix.environment }}-${{ matrix.label }}-${{ steps.get-date.outputs.today }}-${{ hashFiles(env.CONDA_FILE) }}-${{ env.CACHE_NUMBER }}