Updated golangci-lint workflow action

Change the golangci-lint action to point to the official github action from the authors of golangci-lint.

.github/workflows/go.yml

@@ -43,7 +43,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Run golangci-lint
-        uses: actions-contrib/golangci-lint@v1
+        uses: golangci/golangci-lint-action@v2
 
   build_test:
     name: Build and test