Add GitHub Actions workflow for PHP tests

Author: fooino

.github/workflows/main.yml

@@ -0,0 +1,25 @@
+name: Tests
+ 
+on: ['push', 'pull_request']
+ 
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+ 
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+ 
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.5
+          tools: composer:v2
+          coverage: xdebug
+          extensions: bcmath, ctype, fileinfo, json, mbstring, pdo, pdo_mysql, tokenizer, xml, curl, openssl, zip, gd, intl
+ 
+      - name: Install Dependencies
+        run: composer install --no-interaction --prefer-dist --optimize-autoloader
+ 
+      - name: Tests
+        run: ./vendor/bin/pest --ci