pkg: Update actions/cache action to v4 (#2927)

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

.github/workflows/benchmark.yml

@@ -46,7 +46,7 @@ jobs:
     # PR comments on changes
     - name: Download previous benchmark data (PR)
       if: ${{ github.event_name == 'pull_request' }}
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ./cache
         key: ${{ runner.os }}-benchmark-pr-${{ env.GITHUB_RUN_NUMBER }}
@@ -72,7 +72,7 @@ jobs:
     # master reports to history
     - name: Download previous benchmark data (main)
       if: ${{ github.event_name == 'push' }}
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ./cache
         key: ${{ runner.os }}-benchmark