Add linter on demand (#31)

Makes sense

Author: DecimalTurn

.github/workflows/linter.yml

@@ -0,0 +1,11 @@
+on: workflow_dispatch
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: awesome-lint
+        run: npx awesome-lint