chore(ci): add pull request

.github/workflows/main.yml

@@ -1,5 +1,6 @@
 name: Go
 on:
+  pull_request:
   push:
     branches:
       - master
@@ -20,11 +21,10 @@ jobs:
       - name: Check out code into the Go module directory
         uses: actions/checkout@v1
 
-      - name: Lint
-        run: |
-          export PATH=$PATH:$(go env GOPATH)/bin
-          curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.35.2
-          golangci-lint run ./...
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v2
+        with:
+          version: v1.29
 
       - name: Run tests
         run: go test ./...