Update controller-runtime to v0.21.0 and all Go runtime metrics are enabled

[dongjiang1989]

What type of PR is this?

What this PR does / why we need it:
Update controller-runtime to v0.21.0 and all Go runtime metrics are enabled

Which issue(s) this PR fixes:
Fixes #

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Does this PR introduce a user-facing change?:

Update controller-runtime to v0.21.0 and all Go runtime metrics are enabled

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[RainbowMango]

The [email protected] requires Kubernetes v1.33, but Karmada now requires v1.32.
Since we are heading to the v1.14 release by the end of this month, I guess we can start bumping Kubernetes to v1.33, and then we will be ready to bump the controller runtime.
@dongjiang1989 can we wait for a while?

[dongjiang1989]

@dongjiang1989 can we wait for a while?

Thanks @RainbowMango
Got it

[RainbowMango]

Hi @dongjiang1989 As controller-runtime is relying on Kubernetes, it should be bumped along with Kubernetes.
The #6498 bumps Kuberentes as well as controller-runtime(v0.21.0), and it is almost ready to merge now.