Merge pull request #20 from dzervas/renovate/actions-cache-4.x

Update actions/cache action to v4

.github/workflows/test.yml

@@ -24,7 +24,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Set up cargo cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       continue-on-error: false
       with:
         path: |