add workflow to lint dockerfile

.github/workflows/lint-docker.yml

@@ -0,0 +1,17 @@
+name: Lint Dockerfile
+
+on:
+  push:
+    paths:
+      - Dockerfile
+
+jobs:
+  lint-dockerfile:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - uses: hadolint/hadolint-action@v2
+        with:
+          dockerfile: Dockerfile

.github/workflows/lint.yml → .github/workflows/lint-go.yml

@@ -1,4 +1,4 @@
-name: Lint
+name: Lint Go
 
 on:
   push: