feat(guild): Support incident actions

[Jiralite]

Please describe the changes this PR makes and why it should be merged:

Upstream:

• forking document incident actions #6396 discord/discord-api-docs#7360

Requires:

• fix: Add RESTPutAPIGuildIncidentActionsResult discord-api-types#1388

Status and versioning classification:

• Code changes have been tested against the Discord API, or there are no code changes
• I know how to update typings and have done so, or typings don't need updating
• This PR changes the library's interface (methods or parameters added)

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Preview	Comments	Updated (UTC)
discord-js	Error			Oct 8, 2025 8:05am
discord-js-guide	Ready	Preview	Comment	Oct 8, 2025 8:05am

[codecov]

Codecov Report

❌ Patch coverage is 0% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 44.21%. Comparing base (af923fe) to head (22b04e6).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/core/src/api/guild.ts	0.00%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11131      +/-   ##
==========================================
- Coverage   44.27%   44.21%   -0.06%     
==========================================
  Files         313      313              
  Lines       18061    18051      -10     
  Branches     1796     1792       -4     
==========================================
- Hits         7996     7981      -15     
- Misses      10053    10058       +5     
  Partials       12       12              

Flag	Coverage Δ
core	0.92% <0.00%> (-0.01%)	⬇️

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.

🚀 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.