ci: start php container for QA gates

.github/workflows/deploy.yaml

@@ -18,20 +18,14 @@ jobs:
       - name: Create .env for CI
         run: cp .env.example .env
 
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: '8.5'
-          extensions: pdo_mysql, mysqli, gd, zip, ldap
-          coverage: none
+      - name: Start project services
+        run: |
+          docker compose up -d --force-recreate php db memcached
+          sleep 20
 
       - name: Install Composer dependencies
-        run: composer install --no-interaction --prefer-dist --optimize-autoloader
-
-      - name: Start DB and Memcached
         run: |
-          docker compose up -d --force-recreate db memcached
-          sleep 10
+          docker compose exec -T php bash -c "cd /var/www && composer install --no-interaction --prefer-dist --optimize-autoloader"
 
       - name: Run required QA gates
         run: bin/qa-required.sh