Bump the pip-updates group with 2 updates (#1455)

Bumps the pip-updates group with 2 updates: [build](https://github.com/pypa/build) and [tox](https://github.com/tox-dev/tox).


Updates `build` from 1.2.2 to 1.2.2.post1
- [Release notes](https://github.com/pypa/build/releases)
- [Changelog](https://github.com/pypa/build/blob/main/CHANGELOG.rst)
- [Commits](pypa/build@1.2.2...1.2.2.post1)

Updates `tox` from 4.20.0 to 4.21.2
- [Release notes](https://github.com/tox-dev/tox/releases)
- [Changelog](https://github.com/tox-dev/tox/blob/main/docs/changelog.rst)
- [Commits](tox-dev/tox@4.20.0...4.21.2)

---
updated-dependencies:
- dependency-name: build
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: pip-updates
- dependency-name: tox
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: pip-updates
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>