feat: upgrade nodepool crd to v1beta2

[tnsimon]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:
/kind feature

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #2258

Special notes for your reviewer:

/assign @rambohe-ch

Does this PR introduce a user-facing change?

Adds updated CRD Nodepool v1beta2 as per https://github.com/openyurtio/openyurt/blob/master/docs/proposals/20241211-reuse-nodepool-list-watch-requests.md#api-changes

other Note

[codecov]

Codecov Report

Attention: Patch coverage is 61.82708% with 234 lines in your changes missing coverage. Please review.

Project coverage is 45.42%. Comparing base (9ba1d5e) to head (263cf9c).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...r/controller/yurtappset/yurt_app_set_controller.go	57.97%	84 Missing and 3 partials ⚠️
...et/loadbalancerset/load_balancer_set_controller.go	53.33%	35 Missing ⚠️
pkg/apis/apps/v1beta1/nodepool_conversion.go	0.00%	32 Missing ⚠️
...bernetes/kubeadm/app/util/apiclient/idempotency.go	0.00%	31 Missing ⚠️
...er/webhook/nodepool/v1beta2/nodepool_validation.go	69.56%	12 Missing and 2 partials ⚠️
...er/controller/nodebucket/node_bucket_controller.go	72.09%	12 Missing ⚠️
pkg/yurtmanager/webhook/server.go	0.00%	6 Missing ⚠️
pkg/apis/apps/v1alpha1/nodepool_conversion.go	0.00%	5 Missing ⚠️
pkg/apis/apps/v1beta2/default.go	0.00%	3 Missing ⚠️
...manager/controller/nodepool/nodepool_controller.go	25.00%	3 Missing ⚠️
... and 4 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2266      +/-   ##
==========================================
+ Coverage   45.18%   45.42%   +0.23%     
==========================================
  Files         422      427       +5     
  Lines       28779    29185     +406     
==========================================
+ Hits        13005    13257     +252     
- Misses      14460    14613     +153     
- Partials     1314     1315       +1     

Flag	Coverage Δ
unittests	45.42% <61.82%> (+0.23%)	⬆️

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[sonarqubecloud]

Quality Gate passed

Issues
8 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[tnsimon]

@rambohe-ch updated all controllers to utilise v1beta2.NodePool scheme.

[rambohe-ch]

/LGTM