Add a CI workflow to lint code

Author: per1234

Diff for: .github/workflows/lint-code.yml

@@ -0,0 +1,37 @@
+name: Lint code
+
+on:
+  push:
+    paths:
+      - ".github/workflows/lint-code.yml"
+      - "Taskfile.yml"
+      - "go.mod"
+      - "go.sum"
+      - "**/*.go"
+  pull_request:
+    paths:
+      - ".github/workflows/lint-code.yml"
+      - "Taskfile.yml"
+      - "go.mod"
+      - "go.sum"
+      - "**/*.go"
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout local repository
+        uses: actions/checkout@v2
+
+      - name: Install Taskfile
+        uses: arduino/actions/setup-taskfile@master
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
+      - name: Install golint
+        run: |
+          go get golang.org/x/lint/golint
+
+      - name: Lint Go code
+        run: task go:lint