fix pipeline e2e test ClassNotFoundException

Author: 王俊博

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

@@ -175,6 +175,7 @@ limitations under the License.
                                     <include>io.debezium:debezium-core</include>
                                     <include>io.debezium:debezium-ddl-parser</include>
                                     <include>io.debezium:debezium-connector-mysql</include>
+                                    <include>org.apache.flink:flink-cdc-base</include>
                                     <include>org.apache.flink:flink-connector-debezium</include>
                                     <include>org.apache.flink:flink-connector-mysql-cdc</include>
                                     <include>org.antlr:antlr4-runtime</include>