Fix typo in SentryOptions.DefaultTags description

[KnapSac]

Found the same typo in SentrySinkExtensions, so fixed that as well.

#skip-changelog

[jamescrosswell]

Thanks @KnapSac !

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.87%. Comparing base (495e742) to head (f0bad4b).
Report is 607 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4217      +/-   ##
==========================================
- Coverage   75.73%   72.87%   -2.86%     
==========================================
  Files         357      455      +98     
  Lines       13466    16509    +3043     
  Branches     2671     3296     +625     
==========================================
+ Hits        10198    12031    +1833     
- Misses       2593     3641    +1048     
- Partials      675      837     +162     

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