ci: add WIP check

.github/workflows/wip.yml

@@ -0,0 +1,12 @@
+name: WIP
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, edited]
+
+jobs:
+  wip:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: wip/action@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}