build(deps): bump jetty.version

Bumps `jetty.version` from 9.4.20.v20190813 to 9.4.35.v20201120.

Updates `jetty-server` from 9.4.20.v20190813 to 9.4.35.v20201120
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.20.v20190813...jetty-9.4.35.v20201120)

Updates `jetty-http` from 9.4.20.v20190813 to 9.4.35.v20201120
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.20.v20190813...jetty-9.4.35.v20201120)

Updates `jetty-io` from 9.4.20.v20190813 to 9.4.35.v20201120
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.20.v20190813...jetty-9.4.35.v20201120)

Updates `jetty-util` from 9.4.20.v20190813 to 9.4.35.v20201120
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.20.v20190813...jetty-9.4.35.v20201120)

Updates `jetty-maven-plugin` from 9.4.20.v20190813 to 9.4.35.v20201120
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.20.v20190813...jetty-9.4.35.v20201120)

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -211,7 +211,7 @@
         <apache-artemis.version>2.12.0</apache-artemis.version> <!-- matching Spring Boot Artemis dependency -->
         <asm.version>7.0</asm.version>
         <geronimo-ws-metadata_2.0_spec.version>1.1.3</geronimo-ws-metadata_2.0_spec.version>
-        <jetty.version>9.4.20.v20190813</jetty.version>
+        <jetty.version>9.4.35.v20201120</jetty.version>
         <maven.api.version>3.6.2</maven.api.version>
         <checkstyle.version>3.1.0</checkstyle.version>
         <xalan.version>2.7.2</xalan.version>