Bump build from 1.4.0 to 1.4.3

Bumps [build](https://github.com/pypa/build) from 1.4.0 to 1.4.3.
- [Release notes](https://github.com/pypa/build/releases)
- [Changelog](https://github.com/pypa/build/blob/main/CHANGELOG.rst)
- [Commits](pypa/build@1.4.0...1.4.3)

---
updated-dependencies:
- dependency-name: build
  dependency-version: 1.4.3
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -1,6 +1,6 @@
 -r requirements.txt
 attrs==26.1.0
-build==1.4.0
+build==1.4.3
 certifi==2026.2.25
 colorama==0.4.6
 flake8==7.3.0