(selectdb-cloud) Upgrade mariadb client version (apache#1905)

* This change _may_ fix "Failed to execute sql: java.lang.ClassCastException: java.util.LinkedHashMap$Entry cannot be cast to java.util.HashMap$TreeNode

fe/pom.xml

@@ -237,7 +237,7 @@ under the License.
         <httpclient.version>4.5.13</httpclient.version>
         <httpcore.version>4.4.15</httpcore.version>
         <aws-java-sdk.version>1.12.31</aws-java-sdk.version>
-        <mariadb-java-client.version>3.0.4</mariadb-java-client.version>
+        <mariadb-java-client.version>3.0.9</mariadb-java-client.version>
         <dlf-metastore-client-hive.version>0.2.14</dlf-metastore-client-hive.version>
         <hadoop.version>3.3.3</hadoop.version>
         <joda.version>2.8.1</joda.version>