update to Go 1.26.5

[wollomatic]

Summary by CodeRabbit

• Chores
  • Updated the build environment to use a newer Go and Alpine Linux base image.
• Documentation
  • Updated the README’s latest Docker image references to version 1.12.3.

[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: 49e0bb8b-3bcf-4043-ac73-f461676295bc

📥 Commits

Reviewing files that changed from the base of the PR and between a23384d and 3a9e006.

📒 Files selected for processing (2)

• Dockerfile
• README.md

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Walkthrough

The Docker build stage now uses Go 1.26.5 on Alpine 3.24, and README Docker image references now point to version 1.12.3.

Changes

Release image updates

Layer / File(s)	Summary
Build and document the release image Dockerfile, README.md	The build stage uses the newer pinned Go/Alpine image, while Docker Hub and GHCR “Latest image” references are updated to 1.12.3.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related issues

• wollomatic/socket-proxy#155 — The PR updates the Docker build image to Go 1.26.5, matching the issue’s objective.

Possibly related PRs

• wollomatic/socket-proxy#91 — Updates the README’s latest Docker image tag references.
• wollomatic/socket-proxy#102 — Updates the Dockerfile Go base image and README release references.
• wollomatic/socket-proxy#130 — Overlaps on the Dockerfile digest and README image version updates.

Poem

I’m a rabbit with a freshly tagged crate,
Go hops ahead while images update their date.
Alpine climbs, the digest shines,
README trails the release lines.
“1.12.3!” I cheer with glee—
A tidy build for you and me.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the main change: upgrading the Docker build image to Go 1.26.5.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 155-update-to-go-1265

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