build(deps): remove jacoco maven plugin in google-cloud-bom module (#5903)

* remove jacoco maven plugin

---------

Co-authored-by: Tomo Suzuki <[email protected]>

Author: renovate-bot

google-cloud-bom/pom.xml

@@ -335,25 +335,6 @@
           <skipDeploy>true</skipDeploy>
         </configuration>
       </plugin>
-      <plugin>
-        <groupId>org.jacoco</groupId>
-        <artifactId>jacoco-maven-plugin</artifactId>
-        <version>0.8.8</version>
-        <executions>
-          <execution>
-            <goals>
-              <goal>prepare-agent</goal>
-            </goals>
-          </execution>
-          <execution>
-            <id>report</id>
-            <phase>test</phase>
-            <goals>
-              <goal>report</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
       <plugin>
         <groupId>com.coveo</groupId>
         <artifactId>fmt-maven-plugin</artifactId>