Addressed issues

Issues addressed in the MKE 3.7.8 release include:

• [MKE-11329] Fixed an issue wherein an incorrect version displayed for coreDNS.

• [MKE-11301] Fixed an issue wherein rollbacks in long running upgrade processes intermittently failed to add etcd members to the cluster.

• [MKE-11281] Fixed an issue wherein MKE made attempts to run cAdvisor instances on unsupported Windows nodes.

• [FIELD-6903] Fixed an issue wherein MKE upgrades from MKE 3.6.x to MKE 3.7.x failed when node ready state could not be saved.