ci: add workflow to run wp plugin checks

.github/workflows/wordpress-plugin-check.yml

@@ -0,0 +1,26 @@
+name: Plugin check
+on:
+  push:
+    branches: [ 'master', 'release/*' ]
+  pull_request:
+    branches: [ 'master' ]
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Check WP plugin
+        uses: wordpress/plugin-check-action@v1
+        with:
+          build-dir: ./dist/statify-blacklist
+          exclude-directories: |
+            .github
+            .wordpress-org
+          exclude-files: |
+            .gitattributes
+            .gitignore
+            composer.json
+            composer.lock
+            phpcs.xml