chore(deps): update golang docker tag to v1.26

[red-hat-konflux]

This PR contains the following updates:

Package	Type	Update	Change
golang	stage	minor	1.25 -> 1.26

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Warning

Some dependencies could not be looked up. Check the warning logs for more information.

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Configuration

📅 Schedule: Branch creation - "every weekend" in timezone America/New_York, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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To execute skipped test pipelines write comment /ok-to-test.

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Documentation

Find out how to configure dependency updates in MintMaker documentation or see all available configuration options in Renovate documentation.

[coderabbitai]

Walkthrough

Both Dockerfile and Dockerfile.e2e files have their builder stage base image updated from golang:1.25 to golang:1.26. No other build instructions or multi-stage configurations are modified.

Changes

Cohort / File(s)	Summary
Go Version Bump in Docker Builders Dockerfile, Dockerfile.e2e	Updated builder stage base image from golang:1.25 to golang:1.26 in both files. No changes to build steps, dependencies, or runtime stages.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: updating the golang Docker tag from 1.25 to 1.26 across the Dockerfiles.
Description check	✅ Passed	The description is related to the changeset, providing a dependency update table and configuration details relevant to the golang version bump.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Merge Conflict Detection	✅ Passed	✅ No merge conflicts detected when merging into main

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch konflux/mintmaker/main/golang-1.x

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No actionable comments were generated in the recent review. 🎉

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