chore(deps): update dependency org.eclipse.jetty:jetty-maven-plugin to v9.4.47.v20220610 (#1179)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [org.eclipse.jetty:jetty-maven-plugin](https://eclipse.org/jetty) ([source](https://togithub.com/eclipse/jetty.project)) | `9.4.46.v20220331` -> `9.4.47.v20220610` | [![age](https://badges.renovateapi.com/packages/maven/org.eclipse.jetty:jetty-maven-plugin/9.4.47.v20220610/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/org.eclipse.jetty:jetty-maven-plugin/9.4.47.v20220610/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/org.eclipse.jetty:jetty-maven-plugin/9.4.47.v20220610/compatibility-slim/9.4.46.v20220331)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/org.eclipse.jetty:jetty-maven-plugin/9.4.47.v20220610/confidence-slim/9.4.46.v20220331)](https://docs.renovatebot.com/merge-confidence/) |

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Author: renovate-bot

gce/pom.xml

@@ -97,7 +97,7 @@ Copyright 2019 Google LLC
       <plugin>
         <groupId>org.eclipse.jetty</groupId>
         <artifactId>jetty-maven-plugin</artifactId>
-        <version>9.4.46.v20220331</version>
+        <version>9.4.47.v20220610</version>
         <executions>
           <execution>
             <id>start-selenium</id>