php 8.4 -> 8.3

Author: kwibus

.github/workflows/moodle-ci.yml

@@ -31,7 +31,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['8.1', '8.4']
+        php: ['8.1', '8.3']
         moodle-branch: ['MOODLE_405_STABLE']
         database: [pgsql, mariadb]