Fix #1472 say argument does not exist for pin_* events in TS

[seratch]

Summary

This pull request resolves #1472. The current pin_added / pin_removed event data types are not compatible with https://github.com/slackapi/bolt-js/blob/%40slack/bolt%403.11.1/src/types/events/index.ts#L81-L83

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

Merging #1473 (3192b5f) into main (23cc0e1) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1473   +/-   ##
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  Coverage   81.97%   81.97%           
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  Files          18       18           
  Lines        1492     1492           
  Branches      435      435           
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  Hits         1223     1223           
  Misses        172      172           
  Partials       97       97           

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[filmaj]

LGTM, thanks for this!

[wickerpopstar]

If it makes sense to fix it as a part of this ticket, the same problem exists for the reaction_added event.

[wickerpopstar]

Looks good. 👍 on the unit tests. Thanks for taking care of this so quickly!

[seratch]

@wickerpopstar Thanks for reporting the same issue for reaction_added/reaction_removed events! I just sent one more PR for it: #1476