Bump PHP for main

Author: aspark21

.github/workflows/moodle-ci.yml

@@ -31,16 +31,16 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - php: '8.2'
+          - php: '8.3'
             moodle-branch: 'main'
             database: 'mariadb'
-          - php: '8.2'
+          - php: '8.3'
             moodle-branch: 'main'
             database: 'pgsql'
-          - php: '8.1'
+          - php: '8.2'
             moodle-branch: 'main'
             database: 'mariadb'
-          - php: '8.1'
+          - php: '8.2'
             moodle-branch: 'main'
             database: 'pgsql'
           - php: '8.1'