ci: add a style.yaml workflow with a ruff job running ruff check

.forgejo/workflows/style.yaml

@@ -0,0 +1,14 @@
+# Links & Resources:
+# - https://hatch.pypa.io/latest/install/#github-actions
+# - https://docs.astral.sh/ruff/integrations/#github-actions
+on: push
+  
+jobs:
+  ruff:
+    runs-on: docker
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Hatch
+        uses: https://github.com/pypa/hatch@install
+      - name: Run Ruff
+        run: hatch run lint:ruff check --output-format=github .