Fix doc link reference in setupscaler.md

[applike-ss]

Two links contained specific keda versions, one of them even not being the latest one.

I removed the version numbers, as the website redirects to the latest docs in this case.

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[wozniakjan]

good catch! Thank you for fixing this, can you also please address this under 2.15 version of the docs?

keda-docs/content/docs/2.15/setupscaler.md

Line 15 in 36aeeac

- Follow the [KEDA installation guide](https://keda.sh/docs/2.14/deploy/) carefully, including any prerequisites specific to your Kubernetes setup.

keda-docs/content/docs/2.15/setupscaler.md

Line 27 in 36aeeac

1. Visit the [KEDA Scalers documentation](https://keda.sh/docs/2.14/scalers/) and browse through the list of available scalers.

[wozniakjan]

lgtm, thank you!