fix: use php-based image for version cohesion

Signed-off-by: Bart Jaskulski <bjaskulski@protonmail.com>

includes/tests/version-cohesion.yml

 .template: &job-check-version-cohesion
+  image: gitlab.wpdesk.dev:5050/wpdesk/docker-tests/php-box:8.2
   stage: tests
   variables:
     PLUGIN_VERSION: ${CI_COMMIT_REF_NAME}