Added gitea workflow

.gitea/workflows/phpunit.yaml

@@ -0,0 +1,27 @@
+
+name: phpunit
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  phpunit:
+    name: PHPUnit
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: "latest"
+          tools: phpunit-bridge
+          extensions: mbstring, xml, ctype, iconv, intl, pdo_sqlite
+          coverage: xdebug
+      - name: Install composer dependencies
+        uses: ./.gitea/actions/composer-install
+      - name: Run PHPUnit
+        shell: bash
+        run: vendor/bin/phpunit --no-progress --testdox --display-warnings