✨ Add Typer integration

[patrick91]

This PR adds an integration for Typer

The integration works by mocking typer.main.except_hook, I was chatting with Sebastian and he's willing to add a hook in typer to avoid mocking, but I think it's also fine to keep the code as is 😊

The code is inspired by the ExcepthookIntegration, same thing for the test, unfortunately there's no way to test a custom except_hook with pytest, so I'm running the CLI using subprocess.

Shall I add this to the default integrations? 😊

Closes #1612
Closes #1604

[sentrivana]

Thank you @patrick91 ❤️ We will take a look at this next week!

Shall I add this to the default integrations? 😊

As with all new integrations I'd prefer we leave this as opt-in for a couple of releases and then re-evaluate, just to be safe.

[codecov]

Codecov Report

Attention: Patch coverage is 63.33333% with 11 lines in your changes missing coverage. Please review.

Project coverage is 79.89%. Comparing base (2666022) to head (1837c5f).
Report is 1 commits behind head on master.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
sentry_sdk/integrations/typer.py	63.33%	10 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3869      +/-   ##
==========================================
- Coverage   79.93%   79.89%   -0.05%     
==========================================
  Files         137      138       +1     
  Lines       15403    15433      +30     
  Branches     2620     2623       +3     
==========================================
+ Hits        12313    12330      +17     
- Misses       2219     2229      +10     
- Partials      871      874       +3     

Files with missing lines	Coverage Δ
sentry_sdk/integrations/typer.py	63.33% <63.33%> (ø)

... and 2 files with indirect coverage changes