chore: unpin 5.10/m6i ami

[ShadowCurse]

Changes

Unpin 5.10/m6i ami.

Reason

Performance is stable now on 5.10/m6i instances.

License Acceptance

By submitting this pull request, I confirm that my contribution is made under
the terms of the Apache 2.0 license. For more information on following Developer
Certificate of Origin and signing off your commits, please check
CONTRIBUTING.md.

PR Checklist

• If a specific issue led to this PR, this PR closes the issue.
• The description of changes is clear and encompassing.
• Any required documentation changes (code and docs) are included in this
  PR.
• API changes follow the Runbook for Firecracker API changes.
• User-facing changes are mentioned in CHANGELOG.md.
• All added/changed functionality is tested.
• New TODOs link to an issue.
• Commits meet
  contribution quality standards.

---

• This functionality cannot be added in rust-vmm.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.07%. Comparing base (c97418a) to head (f809ad3).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4865   +/-   ##
=======================================
  Coverage   84.07%   84.07%           
=======================================
  Files         251      251           
  Lines       28052    28052           
=======================================
  Hits        23586    23586           
  Misses       4466     4466           

Flag	Coverage Δ
5.10-c5n.metal	84.71% <ø> (ø)
5.10-m5n.metal	84.70% <ø> (+0.01%)	⬆️
5.10-m6a.metal	84.00% <ø> (ø)
5.10-m6g.metal	80.70% <ø> (ø)
5.10-m6i.metal	84.70% <ø> (+<0.01%)	⬆️
5.10-m7g.metal	80.70% <ø> (ø)
6.1-c5n.metal	84.71% <ø> (ø)
6.1-m5n.metal	84.70% <ø> (+<0.01%)	⬆️
6.1-m6a.metal	84.00% <ø> (-0.01%)	⬇️
6.1-m6g.metal	80.70% <ø> (ø)
6.1-m6i.metal	84.69% <ø> (ø)
6.1-m7g.metal	80.70% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.