MH mh/mixins/deps.py: prevent deprecation warning when no deps are specified (#6644)
* MH mh/mixins/deps.py: prevent deprecation warning when no deps are specified
* rollback empty "patch" on license markers to prevent test error
* disable test in ansible 2.12
* add changelog frag
(cherry picked from commit 494909aba5)
Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>
patchback[bot]