ci: add workflow to run wp plugin checks

Author: stklcode

.distignore

@@ -2,6 +2,7 @@
 /.git
 /.github
 /.wordpress-org
+/dist
 /node_modules
 /vendor
 

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

@@ -0,0 +1,30 @@
+name: Plugin check
+on:
+  push:
+    branches: [ 'release/*' ]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.2'
+          tools: composer
+
+      - name: Build
+        run:  composer install --no-interaction
+
+      - name: Package plugin
+        run: |
+          mkdir -p ./dist
+          rsync -rc --exclude-from=.distignore ./ ./dist/snitch --delete --delete-excluded
+
+      - name: Check WP plugin
+        uses: wordpress/plugin-check-action@v1
+        with:
+          build-dir: ./dist/snitch