2021-May-30 - Prerelease - 2.6.215

Fix ansible deloyment & add provisioning github actions (#9303)

- Includes various fixes to deployment config
- Splits app deployment (site.yml) play from standard provisioning.
  This re-introduces a two step deployment process where new machines
  need to be provisioned first before we can deply to them.
  It was being observed that various tasks like updating apt packages
  was crashing, to avoid this we can simply not re-run it on every
  deployment.
  Instead there is now a github action that can be triggered whenever
  we add a new sever.