Backport: fix(vm): fix condition based metrics

[deckhouse-BOaTswain]

Description

AwaitingRestartToApplyConfiguration, ConfigurationApplied, AgentReady and FirmwareUpToDate conditions are no longer displayed to the user unless they contain an issue or some important message for the user. However, this change was not accounted for in the metrics. It's fixed in this pr.

Checklist

• The code is covered by unit tests.
• e2e tests passed.
• Documentation updated according to the changes.
• Changes were tested in the Kubernetes cluster manually.

Changelog entries

section: vm 
type: fix
summary: The collection of metrics based on conditions has been fixed. `AwaitingRestartToApplyConfiguration`, `ConfigurationApplied`, `AgentReady` and `FirmwareUpToDate` conditions of the virtual machine are no longer displayed to the user unless they contain an issue or an important message. However, this change was not initially reflected in the metrics. It has now been corrected.