feat: Voice Channel Effect Send

[Jiralite]

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

• Document the Voice Channel Effect Send event discord/discord-api-docs#6025
• feat(Gateway): add VoiceChannelEffectSend event discord-api-types#739

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]

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Name	Status	Preview	Comments	Updated (UTC)
discord-js	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 1, 2024 2:33pm
discord-js-guide	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 1, 2024 2:33pm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 40.28%. Comparing base (ab8bf0f) to head (b17a18b).
Report is 7 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main   #10318       +/-   ##
===========================================
- Coverage   50.37%   40.28%   -10.09%     
===========================================
  Files         228      184       -44     
  Lines       20641    16898     -3743     
  Branches     1240      953      -287     
===========================================
- Hits        10397     6807     -3590     
+ Misses      10199    10046      -153     
  Partials       45       45               

Flag	Coverage Δ
brokers	64.14% <ø> (ø)
collection	99.32% <ø> (ø)
formatters	99.31% <ø> (ø)
guide	0.00% <ø> (ø)
proxy	78.52% <ø> (ø)
rest	92.68% <ø> (ø)
util	68.86% <ø> (ø)
utilities	100.00% <ø> (ø)
voice	63.64% <ø> (ø)
website	0.00% <ø> (ø)
ws	51.93% <ø> (ø)

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