feat(types): add huddle_state_call_id to UserHuddleChangedEvent

[misscoded]

Summary

Resolves #2427 by adding missing huddle_state_call_id. See payload in docs for verification of this property's existence.

Per original issue:

You will receive a payload typed as UserHuddleChangedEvent. If payload.user.profile.huddle_state has the value in_a_huddle, then the payload you will receive contains payload.user.profile.huddle_state_call_id, which is not listed within the type UserHuddleChangedEvent.

Technically this property only appears as a conditional state based upon another property, but as we're not getting that granular with any other optional property, just leaving it as a simple optional here.

Requirements (place an x in each [ ])

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.09%. Comparing base (9a0c4c4) to head (548676c).
⚠️ Report is 3 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2448   +/-   ##
=======================================
  Coverage   93.09%   93.09%           
=======================================
  Files          40       40           
  Lines       11240    11240           
  Branches      713      713           
=======================================
  Hits        10464    10464           
  Misses        764      764           
  Partials       12       12           

Flag	Coverage Δ
cli-hooks	95.23% <ø> (ø)
cli-test	94.79% <ø> (ø)
oauth	77.39% <ø> (ø)
socket-mode	61.87% <ø> (ø)
web-api	98.11% <ø> (ø)
webhook	96.66% <ø> (ø)

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

🚀 New features to boost your workflow:

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

[zimeg]

@misscoded LGTM! I was curious about these huddle prefixes and it's so interesting to find:

R017QJ4PEN7