Validation fails with uppercase characters in label key

[kenfinnigan]

Summary

Validation of label keys in metadata fails with an uppercase character in the name.

What is the current bug behavior?

SLO yaml with the following content will fail validation:

metadata:
  name: string
  displayName: string # optional
  labels:
    userImpacting:
      - "true"

What is the expected correct behavior?

Validation succeeds

Possible fixes

The check here can be removed to allow uppercase characters in the label key. As per https://github.com/openslo/openslo#general-schema it should be possible

[ian-bartholomew]

@kenfinnigan is this still an issue? the linked line in the code moved so I wasn't sure if the behavior was still happening

[kenfinnigan]

Just tested with main and it's now fixed, thanks!