feat: upgrade golangci-lint to v1.63.4

[rambohe-ch]

Reason for Change:

golangci-lint v1.57 can not satisfy the requirement of v1.NodeClaim, so we need to upgrade golangci-lint before posting the v1.NodeClaim upgrade.

1. upgrade golangci-lint to the v1.63.4 version
2. configure golangci-lint to make gci checking, and make sure the package import orders should follow: standard --> normal --> kaito
3. fix some other errors which has been triggered by new version golangci-lint, like ioutil, pointer, rand.Seed, etc.

Requirements

• added unit tests and e2e tests (if applicable).

Issue Fixed:

Notes for Reviewers:

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 4 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
pkg/ragengine/controllers/ragengine_controller.go	50.00%	1 Missing ⚠️
pkg/utils/common.go	0.00%	1 Missing ⚠️
pkg/workspace/manifests/manifests.go	0.00%	1 Missing ⚠️
pkg/workspace/tuning/preset-tuning.go	0.00%	1 Missing ⚠️

Files with missing lines	Coverage Δ
api/v1alpha1/params_validation.go	54.73% <ø> (ø)
api/v1alpha1/ragengine_validation.go	58.69% <ø> (ø)
api/v1alpha1/workspace_validation.go	82.88% <ø> (ø)
pkg/featuregates/featuregates.go	100.00% <ø> (ø)
pkg/model/interface.go	55.55% <ø> (ø)
pkg/ragengine/controllers/preset-rag.go	70.73% <ø> (ø)
...kg/ragengine/controllers/ragengine_gc_finalizer.go	0.00% <ø> (ø)
pkg/ragengine/controllers/ragengine_status.go	93.47% <ø> (ø)
pkg/ragengine/manifests/manifests.go	69.31% <ø> (ø)
pkg/utils/nodeclaim/nodeclaim.go	84.33% <ø> (-0.67%)	⬇️
... and 11 more