Bump jetty-servlet from 9.4.25.v20191220 to 9.4.27.v20200227
Bump jetty-servlet from 9.4.25.v20191220 to 9.4.27.v20200227

Bumps [jetty-servlet](https://github.com/eclipse/jetty.project) from 9.4.25.v20191220 to 9.4.27.v20200227.
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](https://github.com/eclipse/jetty.project/compare/jetty-9.4.25.v20191220...jetty-9.4.27.v20200227)

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