Update to upstream

[JasonPowr]

Summary by Sourcery

Update CI configurations, GitHub Actions versions, and linter settings; refine logging and helper functions; adjust dependency automation and clean up vendor metadata.

New Features:

• Introduce a standalone golangci-lint GitHub workflow.

Bug Fixes:

• Fix debug log formatting in webhook validator to use correct name and namespace fields.

Enhancements:

• Upgrade golangci-lint configuration to v2 syntax with revised linters, settings, exclusions, and formatters.
• Refactor testing helpers to use SetDeletionTimestamp method in reconciler testing utilities.

CI:

• Bump versions of various GitHub Actions (cache, codecov, cosign-installer, ko, Google Cloud SDK, goreleaser, slsa-generator, CodeQL, scorecard, etc.) across workflows.
• Update Dependabot to run weekly with grouped update rules for sigstore and minor/patch dependencies.
• Set scaffolding release version to v0.7.22 in kind-cluster workflows.

Chores:

• Remove obsolete third_party Prometheus procfs license and notice files.

[sourcery-ai]

Reviewer's Guide

This PR aligns the project with upstream by overhauling lint configuration, systematically updating CI/workflow dependencies, refining minor code patterns for metadata and logging, adjusting dependency update schedules, and removing stale vendor license files.

File-Level Changes

Change	Details	Files
Overhauled GolangCI lint configuration	Bumped config version to 2 and restructured run/linters/settings sections Enabled/disabled linters and added formatter and exclusion settings Replaced legacy rules and output blocks with new formatters and exclusions	.golangci.yml
Bulk update of GitHub Actions and workflows	Bumped versions for actions/cache, codecov, cosign-installer, setup-ko, auth, setup-gcloud, goreleaser, codeql, scorecard, yq and others Removed deprecated lint job from tests workflow and added a standalone lint.yaml workflow Unified caching and path exclusion patterns across workflows	.github/workflows/*.yaml
Adjusted Dependabot configuration	Changed update interval from daily to weekly Added grouping rules for sigstore and minor/patch updates	.github/dependabot.yml
Refactored metadata and logging calls	Replaced ObjectMeta-based deletion timestamp setters with direct SetDeletionTimestamp Simplified logging calls to reference Name and Namespace fields directly	pkg/webhook/validator.go pkg/reconciler/testing/v1alpha1/clusterimagepolicy.go pkg/reconciler/testing/v1alpha1/trustroot.go
Removed stale vendor license files	Deleted LICENSE and NOTICE for prom/procfs under third_party	third_party/VENDOR-LICENSE/github.com/prometheus/procfs/LICENSE third_party/VENDOR-LICENSE/github.com/prometheus/procfs/NOTICE

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[sourcery-ai]

Hey @JasonPowr - I've reviewed your changes - here's some feedback:

• Double-check removal of the third_party LICENSE and NOTICE files to ensure we’re not inadvertently violating any upstream licensing requirements.
• Consider centralizing or templating GitHub Action version pins (e.g. via reusable workflows) to avoid repetitive manual bumps across all CI files.
• Review the restructured golangci-lint config to confirm the new exclusion presets and settings still enforce the intended rules, especially around generated and test code.

Prompt for AI Agents

Please address the comments from this code review:
## Overall Comments
- Double-check removal of the third_party LICENSE and NOTICE files to ensure we’re not inadvertently violating any upstream licensing requirements.
- Consider centralizing or templating GitHub Action version pins (e.g. via reusable workflows) to avoid repetitive manual bumps across all CI files.
- Review the restructured golangci-lint config to confirm the new exclusion presets and settings still enforce the intended rules, especially around generated and test code.

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