Bump urwid from 2.1.2 to 2.5.1

Bumps [urwid](https://github.com/urwid/urwid) from 2.1.2 to 2.5.1.
- [Release notes](https://github.com/urwid/urwid/releases)
- [Changelog](https://github.com/urwid/urwid/blob/master/docs/changelog.rst)
- [Commits](urwid/urwid@release-2.1.2...2.5.1)

---
updated-dependencies:
- dependency-name: urwid
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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