🌱 chore: upgrade to go 1.26

[tesshuflower]

Upgrades Go version from 1.25 to 1.26.

Changes:

• go.mod — go directive updated to 1.26.0
• .github/workflows/tests.yaml — GO_VERSION updated to 1.26
• .github/workflows/release.yaml — GO_VERSION updated to 1.26
• .github/workflows/ocm.yml — GO_VERSION updated to 1.26

Relates to: open-cluster-management-io/ocm#1555

Summary by CodeRabbit

• Chores
  • Updated Go toolchain version from 1.25 to 1.26 across all build and deployment pipelines to ensure compatibility with the latest Go release.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 1b1b2361-b12f-4ad5-8081-14ca605d8964

📥 Commits

Reviewing files that changed from the base of the PR and between bd2d874 and cc42cfe.

📒 Files selected for processing (4)

• .github/workflows/ocm.yml
• .github/workflows/release.yaml
• .github/workflows/tests.yaml
• go.mod

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Walkthrough

The Go toolchain version is bumped from 1.25 to 1.26 across the repository. The go directive in go.mod is updated to 1.26.0, and the GO_VERSION environment variable is updated to 1.26 in the ocm.yml, release.yaml, and tests.yaml GitHub Actions workflows.

Changes

Go 1.26 Toolchain Bump

Layer / File(s)	Summary
go.mod and CI workflow Go version update go.mod, .github/workflows/ocm.yml, .github/workflows/release.yaml, .github/workflows/tests.yaml	go.mod toolchain directive updated from 1.25.0 to 1.26.0; GO_VERSION environment variable updated from 1.25 to 1.26 in all three CI workflows.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related issues

• Move to build with golang 1.26 ocm#1555: This PR directly implements the Go toolchain upgrade from 1.25 to 1.26 requested in that issue.

Possibly related PRs

• open-cluster-management-io/clusteradm#507: Same pattern of Go toolchain version bump in go.mod and CI workflow GO_VERSION variables.
• open-cluster-management-io/clusteradm#524: Directly overlaps on the same go.mod and workflow files with a prior Go version update.

Suggested labels

approved, lgtm

Suggested reviewers

• ycyaoxdu
• zhujian7

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: upgrading Go to version 1.26. It uses the appropriate emoji prefix (:seedling:) and follows the repository's naming conventions.
Description check	✅ Passed	The description includes a clear summary, lists all affected files with specific changes, and references a related issue. While the template's 'Related issue(s)' section could use the 'Fixes #' format, the description adequately conveys the PR's purpose and scope.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[dhaiducek]

LGTM!

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dhaiducek, tesshuflower, TylerGillson

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• OWNERS [TylerGillson]

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