v0.20.6-rc.1

What's Changed

• [v0.20] Merge pull request #2297 from neogopher/fix-set-etcd-headless-endpoints-correctly by @neogopher in #2300
• [v0.20] Merge pull request #2309 from neogopher/fix-upgrade-command by @loft-bot in #2313
• [v0.20] bugfix: set allocatable resources to 0 when free capacity goes negative by @neogopher in #2323
• [v0.20] Set fake Node IP for the virtual pod status.HostIP field when ProxyKubelets.ByIP is enabled (#2420) by @neogopher in #2424
• [0.20] Remove the ServiceBlockDeletion Annotation once the virtual service exists by @neogopher in #2436

Full Changelog: v0.20.5...v0.20.6-rc.1