chore: bump dockerfile to node 24

[ava-silver]

What does this PR do?

Bumps the CI runner Dockerfile from Node 20 to Node 24, aligning it with the versions used in the GitHub Actions matrix (Node 20 was dropped in #243).

Motivation

After #243 dropped Node 20 from the CI matrix, the Dockerfile was left behind on node_20.x with a now-stale comment. This keeps the release/CI environment consistent with the test matrix.

Testing Guidelines

• CI should pass with the updated image.

Additional Notes

No logic changes -- version bump only.

Types of changes

• Misc (docs, refactoring, dependency upgrade, etc.)

Check all that apply

• This PR's description is comprehensive

[ava-silver]

• chore: bump dockerfile to node 24 #245 👈 (View in Graphite)
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.72%. Comparing base (6532951) to head (5ae0cdf).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #245   +/-   ##
=======================================
  Coverage   82.72%   82.72%           
=======================================
  Files          19       19           
  Lines         938      938           
  Branches      231      231           
=======================================
  Hits          776      776           
  Misses         91       91           
  Partials       71       71           

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.