rollback guava version in adapter module (#3880)

client-adapter/pom.xml

@@ -212,6 +212,12 @@
                 <artifactId>curator-recipes</artifactId>
                 <version>2.10.0</version>
             </dependency>
+            <!-- 单独指定guava版本，兼容curator-client -->
+            <dependency>
+                <groupId>com.google.guava</groupId>
+                <artifactId>guava</artifactId>
+                <version>18.0</version>
+            </dependency>
             <dependency>
                 <groupId>joda-time</groupId>
                 <artifactId>joda-time</artifactId>