Bump undertow-core from 2.2.10.Final to 2.2.11.Final in /connector.as400 (#10)

Bumps [undertow-core](https://github.com/undertow-io/undertow) from 2.2.10.Final to 2.2.11.Final.
- [Release notes](https://github.com/undertow-io/undertow/releases)
- [Commits](https://github.com/undertow-io/undertow/compare/2.2.10.Final...2.2.11.Final

)

---
updated-dependencies:
- dependency-name: io.undertow:undertow-core
  dependency-type: direct:production
...

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