Bump Go to 1.26 and use newer language features

[colinodell]

No description provided.

[Copilot]

Pull request overview

This pull request attempts to upgrade Go from version 1.25 to 1.26 and modernize the codebase by replacing the k8s.io/utils/ptr package with Go's built-in new() function and using the standard library maps.Copy() function. However, the PR contains critical bugs in the implementation of these changes.

Changes:

• Update Go version to 1.26.0 across go.mod, go.work, api/go.mod, Dockerfile, and GitHub Actions
• Replace ptr.To() calls with new() for creating pointers to primitive values
• Replace manual map copying loops with maps.Copy() function

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
go.work	Updates Go version directive to 1.26.0
go.mod	Updates Go version directive to 1.26.0
api/go.mod	Updates Go version directive to 1.26.0
Dockerfile	Updates base image to golang:1.26.0-alpine3.23
.github/actions/setup-go/action.yml	Updates default Go version to 1.26
internal/webhooks/buildkit_template.go	Removes ptr import, attempts to replace ptr.To() with new()
internal/controllers/buildkit/builder_test.go	Removes ptr import, attempts to replace ptr.To() with new()
internal/controllers/buildkit/builder.go	Removes ptr import, attempts to replace ptr.To() with new()
internal/controllers/buildkit/resources/merge.go	Adds maps import, replaces manual map copying with maps.Copy()

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[codecov]

Codecov Report

❌ Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 76.22%. Comparing base (f32cfea) to head (f1db9cf).
⚠️ Report is 2 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
internal/webhooks/buildkit_template.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #85      +/-   ##
==========================================
- Coverage   76.30%   76.22%   -0.09%     
==========================================
  Files          14       14              
  Lines         574      572       -2     
==========================================
- Hits          438      436       -2     
  Misses        117      117              
  Partials       19       19              

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