Fix the issues reported by phpcs

Fix it in 3530242-fix-the-issues branch. Please check.

I can confirm that I get no output when running the above command (on a DrupalPod instance running D10.3.14).

Hi

I reviewed MR!26, applied to Popup message 3.x-dev, and confirmed it fixes the issue reported by phpcs.

➜  popup_message git:(3.x) curl https://git.drupalcode.org/project/popup_message/-/merge_requests/26.diff | patch -p1
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  4553    0  4553    0     0   3944      0 --:--:--  0:00:01 --:--:--  3966
patching file popup_message.module
patching file 'src/Enum/PopupMessageDefaultValues.php'
patching file 'src/EventSubscriber/PopupMessageSubscriber.php'
patching file 'src/Form/PopupMessageSettingsForm.php'
➜  popup_message git:(3.x) ✗ cd ..
➜  contrib git:(main) ✗ phpcs --standard=Drupal,DrupalPractice --extensions=php,module,inc,install,test,profile,theme,css,info,txt,md,yml,twig popup_message
➜  contrib git:(main) ✗

Moving this to RTBC.
Thank you.