Upgrade Kubernetes to v1.30.7

[astefanutti]

What this PR does / why we need it:

This PR includes:

• Kubernetes upgrade to v1.30.7
• controller-runtime upgrade to v0.18.5
• Adapt controllers to use controller-runtime generics API
• Adapt code generation to new kube_codegen.sh script

Which issue(s) this PR fixes (optional, in Fixes #<issue number>, #<issue number>, ... format, will close the issue(s) when PR gets merged):

This is the first PR to fix #2291, for upgrading to 1.30 first, and that'll be followed by #2330 to upgrade to 1.31 after this one is merged.

This supersedes #2299.

Checklist:

• [x] Docs included if any changes are user facing

[google-oss-prow[bot]]

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[astefanutti]

@kannon92 @tenzen-y I think this is ready for review. Please have a look. Thanks!