JAVA-33535: Fix errors after mockito upgrade. (#16389)

* Fix eureka-client

* Fix eureka-server

* Fix spring-cloud-zuul

* Fix spring-reactive-data-couchbase

* Fix and cleanup apache-poi

spring-reactive-modules/spring-reactive-data-couchbase/pom.xml

@@ -65,6 +65,12 @@
             <version>${couchbaseMock.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>net.bytebuddy</groupId>
+            <artifactId>byte-buddy</artifactId>
+            <version>${byte-buddy.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
@@ -129,6 +135,7 @@
         <maven.compiler.source>11</maven.compiler.source>
         <maven.compiler.target>11</maven.compiler.target>
         <java.version>11</java.version>
+        <byte-buddy.version>1.14.13</byte-buddy.version>
     </properties>
 
 </project>