Build(deps): Bump check-wheel-contents from 0.6.1 to 0.6.3

Bumps [check-wheel-contents](https://github.com/jwodder/check-wheel-contents) from 0.6.1 to 0.6.3.
- [Release notes](https://github.com/jwodder/check-wheel-contents/releases)
- [Changelog](https://github.com/jwodder/check-wheel-contents/blob/master/CHANGELOG.md)
- [Commits](jwodder/check-wheel-contents@v0.6.1...v0.6.3)

---
updated-dependencies:
- dependency-name: check-wheel-contents
  dependency-version: 0.6.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

constraints.txt

@@ -6,7 +6,7 @@ backports.asyncio.runner==1.2.0
 backports.tarfile==1.2.0
 certifi==2025.10.5
 charset-normalizer==3.4.4
-check-wheel-contents==0.6.1
+check-wheel-contents==0.6.3
 cffi==2.0.0
 click==8.3.0
 coverage==7.10.7