SRE-2386: use latest ARC

[lilfrou]

Linear Ticket

SRE-2386

Overview

• use latest ARC

Areas to focus on

• use utility-staging-amd64

Summary by Sourcery

CI:

• Change the CI workflow to run on 'utility-staging-amd64' instead of 'ubuntu-latest'.

[linear]

SRE-2386 Migrate GitHub Actions to actions-runner-controller Staging Part 2

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR updates the CI workflow configuration to use a custom runner (utility-staging-amd64) instead of the default ubuntu-latest runner for the build job.

File-Level Changes

Change	Details	Files
Updated GitHub Actions runner configuration	Changed the build job runner from ubuntu-latest to utility-staging-amd64	.github/workflows/ci.yml

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[sourcery-ai]

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

Overall Comments:

• Please provide more context in the PR description about why we're switching from ubuntu-latest to utility-staging-amd64. What are the benefits or requirements driving this change?

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟡 Security: 1 issue found
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[sourcery-ai]

🚨 question (security): Consider security and reproducibility implications of using a custom runner

Custom runners can introduce security risks and might affect build reproducibility. Could you explain the rationale for switching from the standard ubuntu-latest runner?