Update cache action

Signed-off-by: Milos Gajdos <[email protected]>

Author: milosgajdos

.github/workflows/ci.yaml

@@ -46,7 +46,7 @@ jobs:
         echo "::set-output name=go_cache::$(go env GOCACHE)"
 
     - name: Cache the build cache
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ${{ steps.vars.outputs.go_cache }}
         key: ${{ runner.os }}-${{ matrix.go }}-go-ci-${{ hashFiles('**/go.sum') }}