Run shellcheck and hadolint in CI

.gitea/workflows/lints.yml

@@ -9,10 +9,16 @@ on:
 
 jobs:
   shellcheck:
-    name: Check scripts
+    name: Misc Linters
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
         uses: https://gitea.com/actions/checkout@v4
-      - name: Run shellcheck
-        run: shellcheck ./container/*.sh
+
+      - name: Lint shellscripts
+        uses: ludeeus/action-shellcheck@master
+
+      - name: Lint Dockerfile
+        uses: hadolint/hadolint-action@v3.1.0
+        with:
+          dockerfile: ./Containerfile