build(deps): update molecule requirement from ~=5.1.0 to ~=6.0.0

Updates the requirements on [molecule](https://github.com/ansible-community/molecule) to permit the latest version.
- [Release notes](https://github.com/ansible-community/molecule/releases)
- [Commits](ansible/molecule@v5.1.0...v6.0.0)

---
updated-dependencies:
- dependency-name: molecule
  dependency-type: direct:production
...

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

requirements.txt

@@ -7,6 +7,6 @@ ansible-lint~=6.17.2
 yamllint~=1.32.0
 
 ## molecule tests
-molecule~=5.1.0
+molecule~=6.0.0
 molecule-plugins~=23.4.1
 docker~=6.1.3