refactor(chart+values): Add upstream alias

General MR

umbrella branch

115-upstream-alias

Summary

Re alias' k8s-monitoring: to upstream: in the values.yaml file to be compliant with big Bang VS policy for passthrough pattern charts.

Relevant logs/screenshots

Linked Issue

issue

Upgrade Notices

All upstream chart values overrides in ./chart/values.yaml will need to be nested under the upstream key.

For example:

Previous Values:

alloy:
  values:
    k8s-monitoring:
      alloy-logs:
        enabled: true
      podLogs:
        enabled: true

Current Values:

alloy:
  values:
    upstream:
      alloy-logs:
        enabled: true
      podLogs:
        enabled: true

Please note, this change does not apply to Big Bang-added top-level keys, including: istio, networkPolicies, openshift, upgradeCrds.

Related to #115 (closed)