Add MaridDB java client into runtimes (#2111)

And remove dedicated mysql image - as the driver is available into the default one

Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>

hawkbit-ddi/hawkbit-ddi-server/pom.xml

@@ -46,6 +46,10 @@
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.mariadb.jdbc</groupId>
+            <artifactId>mariadb-java-client</artifactId>
+        </dependency>
         <dependency>
             <groupId>com.microsoft.sqlserver</groupId>
             <artifactId>mssql-jdbc</artifactId>
@@ -73,11 +77,6 @@
             <version>${project.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency> <!-- if run against mysql -->
-            <groupId>org.mariadb.jdbc</groupId>
-            <artifactId>mariadb-java-client</artifactId>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
     <build>