Netflix/metaflow 2.7.13 on GitHub

What's Changed

Add cmd extension point to allow MF extensions to extend it by @romain-intel in #1143
Fix periodic messages printed at runtime by @romain-intel and @jackie-ob in #1061, #1151 and #1159
Pass datastore_type to validate_environment by @romain-intel in #1152
Support kubernetes_conn_id in Airflow integration by @valayDave in #1153
Use json to dump/load decorator specs by @romain-intel in #1144
argo use kubernetes client class by @oavdeev in #1163
Rewrite IncludeFile implementation by @romain-intel in #1109
Add options to make card generation faster in some cases by @romain-intel in #1167
Env escape improvements and bug fixes by @romain-intel in #1166
Allow figures in Image.from_matplotlib by @valayDave in #1147
Bump for release by @romain-intel in #1168

Full Changelog: 2.7.12...2.7.13