add phpunit testing to GH actions

.github/workflows/phpunit.yml

@@ -0,0 +1,23 @@
+name: Phpunit
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  tests:
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        php-versions: ['8.2']
+    steps:
+    - uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php-versions }}
+    - uses: actions/checkout@v4
+    - name: Install Dependencies
+      run: composer install -q --no-ansi --no-interaction --no-scripts --no-progress --prefer-dist
+    - name: Execute tests PHPUnit tests
+      run: ./vendor/bin/phpunit tests