ci: nightly - php-8.1 min version (#6457)

Author: grooverdan

.github/workflows/nightly.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.4"
+          - "8.1"
           - "8.3"
         mariadb-version:
           - "earliest"