Bump cyclonedx-python-lib from 7.6.0 to 8.4.0

Bumps [cyclonedx-python-lib](https://github.com/CycloneDX/cyclonedx-python-lib) from 7.6.0 to 8.4.0.
- [Release notes](https://github.com/CycloneDX/cyclonedx-python-lib/releases)
- [Changelog](https://github.com/CycloneDX/cyclonedx-python-lib/blob/main/CHANGELOG.md)
- [Commits](CycloneDX/cyclonedx-python-lib@v7.6.0...v8.4.0)

---
updated-dependencies:
- dependency-name: cyclonedx-python-lib
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

requirements.txt

@@ -1,5 +1,5 @@
 beautifulsoup4==4.12.3
-cyclonedx-python-lib===7.6.0
+cyclonedx-python-lib===8.4.0
 cyclonedx-python-lib[validation]==7.6.0
 requests==2.32.3
 mypy==1.13.0