Bump build in the packaging group across 1 directory

Bumps the packaging group with 1 update in the / directory: [build](https://github.com/pypa/build).


Updates `build` from 1.2.2.post1 to 1.3.0
- [Release notes](https://github.com/pypa/build/releases)
- [Changelog](https://github.com/pypa/build/blob/main/CHANGELOG.rst)
- [Commits](pypa/build@1.2.2.post1...1.3.0)

---
updated-dependencies:
- dependency-name: build
  dependency-version: 1.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: packaging
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements_tests.txt

@@ -12,7 +12,7 @@ automat==24.8.1
     # via twisted
 backports-tarfile==1.2.0
     # via jaraco-context
-build==1.2.2.post1
+build==1.3.0
     # via -r requirements_tests.in
 certifi==2025.10.5
     # via