Bump jetty-server from 9.2.12.v20150709 to 11.0.15

Bumps [jetty-server](https://github.com/eclipse/jetty.project) from 9.2.12.v20150709 to 11.0.15.
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](https://github.com/eclipse/jetty.project/compare/jetty-9.2.12.v20150709...jetty-11.0.15)

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

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