fix: mysql with specific letters exclude '\'

Author: jarad0628

connectors-common/debezium-bucket/debezium-connector-mysql/src/main/java/io/debezium/connector/mysql/MySqlConnectorConfig.java

@@ -9,6 +9,7 @@
 import java.time.Duration;
 import java.util.*;
 import java.util.function.Predicate;
+import java.util.stream.Collectors;
 
 import org.apache.kafka.common.config.ConfigDef;
 import org.apache.kafka.common.config.ConfigDef.Importance;