Update molecule-plugins requirement from ~=23.5 to ~=23.6 in /molecule

Updates the requirements on [molecule-plugins](https://github.com/ansible-community/molecule-plugins) to permit the latest version.
- [Release notes](https://github.com/ansible-community/molecule-plugins/releases)
- [Commits](ansible-community/molecule-plugins@v23.5.0...v23.6.0)

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

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

molecule/ext/requirements.txt

@@ -1,6 +1,6 @@
 # Default requirements file for running SRC molecule tests
 molecule~=24.12
-molecule-plugins~=23.5
+molecule-plugins~=23.6
 jmespath~=1.0
 docker~=7.1
 podman~=5.2