Merge pull request #81 from tweag/dependabot/github_actions/actions/c…

…ache-4

Bump actions/cache from 3 to 4

.github/workflows/workflow.yaml

@@ -38,7 +38,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Mount Bazel cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/repo-cache
           key: repo-cache-${{ runner.os }}-nixpkgs-${{ env.cache-version }}