fix: correct php-version input parameter type

.gitlab-ci.yml

 include:
   - component: dev.quiqqer.com/quiqqer/stabilization/ci-cd-components/phpunit/phpunit@dev
     inputs:
-      php-version: 8.3
+      php-version: "8.3"
   - component: dev.quiqqer.com/quiqqer/stabilization/ci-cd-components/phpunit/phpunit@dev
     inputs:
-      php-version: 8.2
+      php-version: "8.2"
   - component: dev.quiqqer.com/quiqqer/stabilization/ci-cd-components/phpunit/phpunit@dev
     inputs:
-      php-version: 8.1
+      php-version: "8.1"
 stages:
   - test