Bump jetty.version from 9.4.46.v20220331 to 9.4.48.v20220622

Bumps `jetty.version` from 9.4.46.v20220331 to 9.4.48.v20220622.

Updates `jetty-maven-plugin` from 9.4.46.v20220331 to 9.4.48.v20220622
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.46.v20220331...jetty-9.4.48.v20220622)

Updates `jetty-server` from 9.4.46.v20220331 to 9.4.48.v20220622
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.46.v20220331...jetty-9.4.48.v20220622)

Updates `jetty-webapp` from 9.4.46.v20220331 to 9.4.48.v20220622
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.46.v20220331...jetty-9.4.48.v20220622)

---
updated-dependencies:
- dependency-name: org.eclipse.jetty:jetty-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.eclipse.jetty:jetty-server
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.eclipse.jetty:jetty-webapp
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -91,7 +91,7 @@
     <scmpublish.content>${project.build.directory}/staging/mrm</scmpublish.content>
     <mavenVersion>2.2.1</mavenVersion>
     <mojo.java.target>1.8</mojo.java.target>
-    <jetty.version>9.4.46.v20220331</jetty.version>
+    <jetty.version>9.4.48.v20220622</jetty.version>
     <project.build.outputTimestamp>2022-06-21T14:23:48Z</project.build.outputTimestamp>
   </properties>