Bump the main group with 2 updates (#46)

Bumps the main group with 2 updates: [class-singledispatch](https://github.com/bswck/class_singledispatch) and [eval-type-backport](https://github.com/alexmojaki/eval_type_backport).


Updates `class-singledispatch` from 1.1.1 to 1.2.3.post2
- [Release notes](https://github.com/bswck/class_singledispatch/releases)
- [Changelog](https://github.com/bswck/class_singledispatch/blob/main/CHANGELOG.md)
- [Commits](bswck/class_singledispatch@v1.1.1...v1.2.3.post2)

Updates `eval-type-backport` from 0.1.3 to 0.2.0
- [Commits](alexmojaki/eval_type_backport@v0.1.3...v0.2.0)

---
updated-dependencies:
- dependency-name: class-singledispatch
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: main
- dependency-name: eval-type-backport
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: main
...

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