remove test case from mysql-cdc module

Author: yuanoOo

flink-cdc-connect/flink-cdc-source-connectors/flink-connector-mysql-cdc/pom.xml

@@ -185,13 +185,6 @@ limitations under the License.
 
         <!-- test dependencies on TestContainers -->
 
-        <dependency>
-            <groupId>org.testcontainers</groupId>
-            <artifactId>junit-jupiter</artifactId>
-            <version>${testcontainers.version}</version>
-            <scope>test</scope>
-        </dependency>
-
         <dependency>
             <groupId>org.testcontainers</groupId>
             <artifactId>mysql</artifactId>