fix(Flyout): Update IconButton aria-label to use closeLabel prop

[aresnik11]

Overview

Currently the Flyout close IconButton aria-label is hard-coded to "Close". This updates it to use the closeLabel prop that defaults to "Close" but is overridable.

PR Checklist

• Related to designs:
• Related to JIRA ticket: GMT-1721
• Version plan added/updated (or not needed)
• I have run this code to verify it works
• This PR includes unit tests for the code change
• This PR includes testing instructions tests for the code change
• The alpha package of this PR is passing end-to-end tests in all relevant Codecademy repositories

Testing Instructions

1. Go to Flyout story
2. Open VO and confirm the x-button is read as "close flyout, button"

PR Links and Envs

Repository	PR Link
Monolith	Monolith PR
Mono	Mono PR

[nx-cloud]

View your CI Pipeline Execution ↗ for commit 87f0eef

---

☁️ Nx Cloud last updated this comment at 2026-07-29 20:26:19 UTC

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@f96f976). Learn more about missing BASE report.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3401   +/-   ##
=======================================
  Coverage        ?   90.10%           
=======================================
  Files           ?      270           
  Lines           ?     5700           
  Branches        ?     1925           
=======================================
  Hits            ?     5136           
  Misses          ?      555           
  Partials        ?        9           

Flag	Coverage Δ
pull-request	90.10% <ø> (?)

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

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

🚀 New features to boost your workflow:

• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[codecademydev]

📬 Published Alpha Packages:

Package	Version	npm	Diff
@codecademy/gamut	72.3.1-alpha.a44e4f.0	npm	diff
@codecademy/gamut-icons	9.57.11-alpha.a44e4f.0	npm	diff
@codecademy/gamut-illustrations	0.58.16-alpha.a44e4f.0	npm	diff
@codecademy/gamut-kit	3.0.11-alpha.a44e4f.0	npm	diff
@codecademy/gamut-patterns	0.10.35-alpha.a44e4f.0	npm	diff
@codecademy/gamut-styles	20.0.3-alpha.a44e4f.0	npm	diff
@codecademy/gamut-tests	6.0.6-alpha.a44e4f.0	npm	diff
@codecademy/variance	0.26.2-alpha.a44e4f.0	npm	diff
eslint-plugin-gamut	2.4.4-alpha.a44e4f.0	npm	diff

[github-actions]

🚀 Styleguide deploy preview ready!

Preview URL: https://6a6a62b65d3a7c7afd80d5a7--gamut-preview.netlify.app
Deploy Logs: https://app.netlify.com/projects/gamut-preview/deploys/6a6a62b65d3a7c7afd80d5a7