fix(operator): refactors LokistackComponentsNotReadyWarning alert

[JoaoBraveCoding]

What this PR does / why we need it:

Alert now triggers on Lokistacks that never reach the ReadyComponents condition

Which issue(s) this PR fixes:
https://issues.redhat.com/browse/LOG-7874

Special notes for your reviewer:

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Documentation added
• Tests updated
• Title matches the required conventional commits format, see here
  • Note that Promtail is considered to be feature complete, and future development for logs collection will be in Grafana Alloy. As such, feat PRs are unlikely to be accepted unless a case can be made for the feature actually being a bug fix to existing behavior.
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[xperimental]

I wonder if it makes more sense to change the collector in internal/metrics to always produce the metric about the ready-condition, even if the condition is not actually in the .status.conditions list, maybe even extending this to all three of the "there can be only one" conditions (failed, pending, ready).

[JoaoBraveCoding]

I wonder if it makes more sense to change the collector in internal/metrics to always produce the metric about the ready-condition, even if the condition is not actually in the .status.conditions list, maybe even extending this to all three of the "there can be only one" conditions (failed, pending, ready).

Yup this was also the other idea I had to tackle this but I wasn't sure if I wasn't reflecting a status on the metrics that still wasn't reflected on the status of the Lokistack... but if you also think that's the best way forward then we can go with it

[JoaoBraveCoding]

Decided on a meeting that we should go ahead with @xperimental suggestion