[FLINK-36332] exclude mockwebserver to ensure we land on single version

Author: SamBarker

flink-kubernetes-webhook/pom.xml

@@ -63,6 +63,12 @@ under the License.
             <artifactId>kubernetes-server-mock</artifactId>
             <version>${fabric8.version}</version>
             <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>com.squareup.okhttp3</groupId>
+                    <artifactId>mockwebserver</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
 
         <dependency>