Bump jetty-server from 9.4.8.v20171121 to 9.4.38.v20210224
Bump jetty-server from 9.4.8.v20171121 to 9.4.38.v20210224

Bumps [jetty-server](https://github.com/eclipse/jetty.project) from 9.4.8.v20171121 to 9.4.38.v20210224.
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](https://github.com/eclipse/jetty.project/compare/jetty-9.4.8.v20171121...jetty-9.4.38.v20210224)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
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