Update mariadb (#285)

* add mariadb 11.5 and 11.6

adds latest mariadb docker images

* update workflow and readme

* Fix readme

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Co-authored-by: Quinten <67589015+QuintenQVD0@users.noreply.github.com>

.github/workflows/mariadb.yml

@@ -25,6 +25,8 @@ jobs:
           - '11.2'
           - '11.3'
           - '11.4'
+          - '11.5'
+          - '11.6'
     steps:
       - uses: actions/checkout@v4
       - uses: docker/setup-qemu-action@v3