Bump jetty.version in /hot-framework

Bumps `jetty.version` from 9.2.30.v20200428 to 9.4.34.v20201102.

Updates `jetty-server` from 9.2.30.v20200428 to 9.4.34.v20201102
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.2.30.v20200428...jetty-9.4.34.v20201102)

Updates `jetty-servlet` from 9.2.30.v20200428 to 9.4.34.v20201102
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.2.30.v20200428...jetty-9.4.34.v20201102)

Updates `jetty-webapp` from 9.2.30.v20200428 to 9.4.34.v20201102
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.2.30.v20200428...jetty-9.4.34.v20201102)

Updates `websocket-server` from 9.2.30.v20200428 to 9.4.34.v20201102

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

Author: dependabot[bot]

hot-framework/pom.xml

@@ -14,7 +14,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<groovy.version>2.5.13</groovy.version>
 		<spring.version>4.3.29.RELEASE</spring.version>
-		<jetty.version>9.2.30.v20200428</jetty.version>
+		<jetty.version>9.4.34.v20201102</jetty.version>
 	</properties>
 
     <pluginRepositories>