chore(deps-dev): update uv-build requirement (#323)

Updates the requirements on [uv-build](https://github.com/astral-sh/uv) to permit the latest version.

Updates `uv-build` to 0.12.4
- [Release notes](https://github.com/astral-sh/uv/releases)
- [Changelog](https://github.com/astral-sh/uv/blob/main/CHANGELOG.md)
- [Commits](astral-sh/uv@0.10.4...0.12.4)

---
updated-dependencies:
- dependency-name: uv-build
  dependency-version: 0.12.4
  dependency-type: direct:development
  dependency-group: python-dependencies
...

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

Author: dependabot[bot]

packages/keel-broker-fake/pyproject.toml

@@ -11,7 +11,7 @@ dependencies = ["keel-core==0.7.1", "keel-broker-api==0.7.1"]
 fake = "keel_broker_fake:FakeAdapter"
 
 [build-system]
-requires = ["uv_build>=0.10.4,<0.11.0"]
+requires = ["uv_build>=0.10.4,<0.13.0"]
 build-backend = "uv_build"
 
 [tool.uv.build-backend]