Add golangci-lint to CI

.github/workflows/golangci-lint.yml

@@ -0,0 +1,18 @@
+name: golangci-lint
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  golangci:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      
+      - uses: golangci/golangci-lint-action@v2
+        with:
+          version: latest
+          args: --timeout=10m