Update dependency molecule-docker to v2.1.0 (#112)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements.txt

@@ -1,6 +1,6 @@
 molecule==4.0.1
 ansible-lint==5.4.0
-molecule-docker==2.0.0
+molecule-docker==2.1.0
 docker==6.0.0
 pytest-testinfra==6.8.0
 yamllint==1.28.0