CI MariaDB: add 11.4, remove 11.0 (#6432)

Cherry-picked from #6426.

Co-authored-by: Daniel Black <[email protected]>

Author: derrabus

.github/workflows/continuous-integration.yml

@@ -302,10 +302,10 @@ jobs:
           - "10.5"  # LTS (Jun 2025)
           - "10.6"  # LTS (Jul 2026)
           - "10.11" # LTS (Feb 2028)
-          - "11.0"  # STS (Jun 2024)
           - "11.1"  # STS (Aug 2024)
           - "11.2"  # STS (Nov 2024)
           - "11.3"  # STS (Feb 2025)
+          - "11.4"  # LTS (May 2029)
         extension:
           - "mysqli"
           - "pdo_mysql"