Add translation checker workflow

.github/translations.yml

@@ -0,0 +1,26 @@
+name: Check translations
+
+on:
+  push:
+    branches:
+      - master
+      - '*.x'
+  pull_request:
+
+jobs:
+  translations:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.3'
+          extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, bcmath, soap, intl, gd, exif, iconv, imagick
+          coverage: none
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-interaction
+      - name: Check translations
+        uses: rapidez/[email protected]