chore: add ci workflow

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      GOFLAGS: -mod=readonly
+      GOPROXY: https://proxy.golang.org
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Unshallow
+        run: git fetch --prune --unshallow
+
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.16
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v2
+
+      - name: Test
+        run: go test ./...

.github/workflows/release.yml

@@ -8,6 +8,9 @@ on:
 jobs:
   goreleaser:
     runs-on: ubuntu-latest
+    env:
+      GOFLAGS: -mod=readonly
+      GOPROXY: https://proxy.golang.org
     steps:
       - name: Checkout
         uses: actions/checkout@v2
@@ -16,7 +19,7 @@ jobs:
         run: git fetch --prune --unshallow
 
       - name: Set up Go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v2
         with:
           go-version: 1.16