chore(deps): update mariadb docker tag to v11.5.2 (#159)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| mariadb | minor | `11.4.3` -> `11.5.2` |

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Co-authored-by: Michael Grote <mg@noreply.git.mgrote.net>
Reviewed-on: #159
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Co-committed-by: Renovate Bot <renovate@mgrote.net>

docker-compose/nextcloud/docker-compose.yml.j2

@@ -2,7 +2,7 @@ version: '3.3'
 services:
 ######## Datenbank ########
   nextcloud-db:
-    image: "mariadb:11.4.3"
+    image: "mariadb:11.5.2"
     container_name: nextcloud-db
     command: --transaction-isolation=READ-COMMITTED --log-bin=ROW --innodb_read_only_compressed=OFF
     restart: unless-stopped