Bump jetty-maven-plugin from 9.4.28.v20200408 to 9.4.29.v20200521
Bump jetty-maven-plugin from 9.4.28.v20200408 to 9.4.29.v20200521

Bumps [jetty-maven-plugin](https://github.com/eclipse/jetty.project) from 9.4.28.v20200408 to 9.4.29.v20200521.
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](https://github.com/eclipse/jetty.project/compare/jetty-9.4.28.v20200408...jetty-9.4.29.v20200521)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
jashaj/TemplateDemo,jashaj/TemplateDemo,jashaj/TemplateDemo