build: add linter

Author: Armin Becher

.github/workflows/main.yml

@@ -14,29 +14,36 @@ jobs:
       - name: Checkout
         uses: actions/checkout@main
       - name: Markup Link Checker (mlc)
-        uses: becheran/mlc@v0.15.4
-  coverage:    
+        uses: becheran/mlc@v0.16.2
+  coverage:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@main
       - uses: codecov/codecov-action@v1
+  lint:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
+        with:
+          go-version: "1.21"
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: v1.53
   test-and-release:
     runs-on: ubuntu-latest
     needs: [check-links]
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-
+        uses: actions/checkout@v3
       - name: Set up Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
-          go-version: 1.18
-      
+          go-version: 1.21
       - name: Test
         run: go test ./...
-      
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v2
         if: startsWith(github.ref, 'refs/tags/')