Bump jetty-webapp from 9.4.26.v20200117 to 9.4.34.v20201102

Bumps [jetty-webapp](https://github.com/eclipse/jetty.project) from 9.4.26.v20200117 to 9.4.34.v20201102.
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.26.v20200117...jetty-9.4.34.v20201102)

---
updated-dependencies:
- dependency-name: org.eclipse.jetty:jetty-webapp
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pom.xml

@@ -10,7 +10,7 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <jetty-version>9.4.26.v20200117</jetty-version>
+    <jetty-version>9.4.34.v20201102</jetty-version>
     <javadoc.opts>-Xdoclint:none</javadoc.opts>
   </properties>