avro

Bump jetty.version in /lang/java (#1230)

Bumps `jetty.version` from 9.4.40.v20210413 to 9.4.41.v20210516.

Updates `jetty-server` from 9.4.40.v20210413 to 9.4.41.v20210516
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](https://github.com/eclipse/jetty.project/compare/jetty-9.4.40.v20210413...jetty-9.4.41.v20210516)

Updates `jetty-servlet` from 9.4.40.v20210413 to 9.4.41.v20210516
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](https://github.com/eclipse/jetty.project/compare/jetty-9.4.40.v20210413...jetty-9.4.41.v20210516)

Updates `jetty-util` from 9.4.40.v20210413 to 9.4.41.v20210516
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](https://github.com/eclipse/jetty.project/compare/jetty-9.4.40.v20210413...jetty-9.4.41.v20210516)

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