update jetty to 11.0.16

[kamenitxan]

This release addresses:

https://github.com/advisories/GHSA-58qw-p7qm-5rvh - provides a workaround for direct users of XmlParser
https://github.com/advisories/GHSA-hmr7-m48g-48f6
https://github.com/advisories/GHSA-3gh6-v5v9-6v9j
https://github.com/advisories/GHSA-pwh8-58vv-vw48

And others https://github.com/eclipse/jetty.project/releases/tag/jetty-10.0.16

[kamenitxan]

updated to jetty 11.0.21