Bump trio from 0.26.1 to 0.26.2 (#1910)

Bumps [trio](https://github.com/python-trio/trio) from 0.26.1 to 0.26.2.
- [Release notes](https://github.com/python-trio/trio/releases)
- [Commits](python-trio/trio@v0.26.1...v0.26.2)

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

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Author: dependabot[bot]