docs: fix broken links in scaler docs

[mailnike]

Several documentation links return HTTP 404. This updates each to its current working location:

• content/docs/2.21/scalers/kubernetes-workload.md (1 link)
• content/docs/2.21/scalers/rabbitmq-queue.md (1 link)
• content/docs/2.21/scalers/aws-kinesis.md (1 link)

Docs-only change. Each replacement URL was verified to return HTTP 200.

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[rickbrouwer]

Thanks!

What do you think, would it be better to go to latest instead of the mentioned versions? That way, it will at least always find the latest version, and we won't have to keep adjusting that in the future.

[rickbrouwer]

By the way, you only modified version 2.21. Could you include the other versions as well?

[mailnike]

Thanks @rickbrouwer, good call on both. I've:

• switched the keda.sh links to /docs/latest/ (and fixed the oauth -> oauth2 slug), and
• used the version-agnostic kubernetes-api/workload-resources/pod-v1/#PodStatus reference for the Kubernetes link instead of a pinned API version,

so they won't go stale, and applied the fixes across every doc version that contained each broken link (aws-kinesis: 2.4-2.21, rabbitmq oauth: 2.20-2.21, kubernetes-workload: 2.6-2.21). Let me know if you'd like anything scoped differently.

[mailnike]

Sorry, I accidentally closed this while updating the branch. Reopened as #1810 with your feedback incorporated (using /docs/latest/ and covering all affected versions). Continuing there.