Update mariadb Docker tag to v10.11

Author: renovate[bot]

.circleci/config.yml

@@ -23,7 +23,7 @@ jobs:
               environment:
                   DATABASE_URL: 'mysql://test:test@127.0.0.1:3306/test'
                   ELASTICSEARCH_HOST: '127.0.0.1:9200'
-            - image: 'mariadb:10.6'
+            - image: 'mariadb:10.11'
               environment:
                   MYSQL_ROOT_PASSWORD: 'root'
                   MYSQL_DATABASE: 'test'
@@ -50,7 +50,7 @@ jobs:
               environment:
                   DATABASE_URL: 'mysql://test:test@127.0.0.1:3306/test'
                   ELASTICSEARCH_HOST: '127.0.0.1:9200'
-            - image: 'mariadb:10.6'
+            - image: 'mariadb:10.11'
               environment:
                   MYSQL_ROOT_PASSWORD: 'root'
                   MYSQL_DATABASE: 'test'

docker-compose.yml

@@ -1,7 +1,7 @@
 version: '2.1'
 services:
   mysql:
-    image: mariadb:10.6
+    image: mariadb:10.11
     environment:
       MYSQL_ROOT_PASSWORD: "${DB_ROOT_PW:-root}"
       MYSQL_DATABASE: "test"