chore: PHP7.2 removed from testing workflow matrix.

Author: kidunot89

.github/workflows/continous-integration.yml

@@ -22,8 +22,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: ['8.0', '7.4', '7.3', '7.2']
-        wordpress: ['5.9', '5.6', '5.3']
+        php: ['8.0', '7.4', '7.3']
+        wordpress: ['6.0', '5.9', '5.6']
         composer_version: ['v2']
         include:
           - php: '7.4'