[Security] Bump jetty-version from 9.4.28.v20200408 to 9.4.34.v20201102

Bumps `jetty-version` from 9.4.28.v20200408 to 9.4.34.v20201102.

Updates `jetty-server` from 9.4.28.v20200408 to 9.4.34.v20201102
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.28.v20200408...jetty-9.4.34.v20201102)

Updates `jetty-webapp` from 9.4.28.v20200408 to 9.4.34.v20201102
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.28.v20200408...jetty-9.4.34.v20201102)

Updates `jetty-servlet` from 9.4.28.v20200408 to 9.4.34.v20201102
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.28.v20200408...jetty-9.4.34.v20201102)

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

handlebars-proto/pom.xml

@@ -14,7 +14,7 @@
   <name>A standalone Handlebars Server</name>
 
   <properties>
-    <jetty-version>9.4.28.v20200408</jetty-version>
+    <jetty-version>9.4.34.v20201102</jetty-version>
   </properties>
 
   <build>