Bump myst-nb from 1.1.1 to 1.1.2

Bumps [myst-nb](/~https://github.com/executablebooks/myst-nb) from 1.1.1 to 1.1.2.
- [Release notes](/~https://github.com/executablebooks/myst-nb/releases)
- [Changelog](/~https://github.com/executablebooks/MyST-NB/blob/master/CHANGELOG.md)
- [Commits](executablebooks/MyST-NB@v1.1.1...v1.1.2)

---
updated-dependencies:
- dependency-name: myst-nb
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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