Add MariaDB 11.3 & 11.4 (#241)

* Update mariadb.yml

Add '11.3' and '11.4'

* Update README.md

* Create Dockerfile - MariaDB 11.3

* Create Dockerfile - MariaDB 11.4

.github/workflows/mariadb.yml

@@ -23,6 +23,8 @@ jobs:
           - '10.6'
           - '10.7'
           - '11.2'
+          - '11.3'
+          - '11.4'
     steps:
       - uses: actions/checkout@v4
       - uses: docker/setup-qemu-action@v3