Updated ReactionRemovedEvent type

[rr-codes]

Summary

Closes #917

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.

[mwbrooks]

Hey @rr-codes, congrats on your first contribution and thanks for signing the CLA!

This PR looks good to me. I'd like @seratch to look over it briefly before we merge, since he's been doing a lot of TypeScript work recently.

[codecov]

Codecov Report

Merging #918 (0e439fd) into main (c432b3a) will not change coverage.
The diff coverage is n/a.

❗ Current head 0e439fd differs from pull request most recent head 03079c5. Consider uploading reports for the commit 03079c5 to get more accurate results

@@           Coverage Diff           @@
##             main     #918   +/-   ##
=======================================
  Coverage   66.22%   66.22%           
=======================================
  Files          13       13           
  Lines        1205     1205           
  Branches      355      355           
=======================================
  Hits          798      798           
  Misses        338      338           
  Partials       69       69           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c432b3a...03079c5. Read the comment docs.

[seratch]

Thanks! LGTM 👍