Merge pull request #7 from pipedrive/renovate/major-gha-actions

Update actions/cache action to v4

Author: kaareloide

.github/workflows/go.yaml

@@ -33,7 +33,7 @@ jobs:
       - uses: actions/setup-go@v2
         with:
           go-version: 1.16
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         with:
           path: ~/go/pkg/mod
           key: go-linux-amd64-${{ hashFiles('**/go.sum') }}