exclude logback transit dependency in zookeeper (#15208)

Author: RainYuY

dubbo-spring-boot/dubbo-spring-boot-starters/dubbo-zookeeper-curator5-spring-boot-starter/pom.xml

@@ -57,6 +57,14 @@
       <artifactId>zookeeper</artifactId>
       <version>${zookeeper_version}</version>
       <exclusions>
+        <exclusion>
+          <groupId>ch.qos.logback</groupId>
+          <artifactId>logback-core</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>ch.qos.logback</groupId>
+          <artifactId>logback-classic</artifactId>
+        </exclusion>
         <exclusion>
           <groupId>io.netty</groupId>
           <artifactId>netty-handler</artifactId>