✨ 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 0% with 30 lines in your changes missing coverage. Please review.

Project coverage is 79.71%. Comparing base (6448c70) to head (7b97222).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
sentry_sdk/integrations/typer.py	0.00%	30 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3869      +/-   ##
==========================================
- Coverage   79.93%   79.71%   -0.23%     
==========================================
  Files         137      138       +1     
  Lines       15403    15433      +30     
  Branches     2620     2623       +3     
==========================================
- Hits        12313    12303      -10     
- Misses       2217     2262      +45     
+ Partials      873      868       -5     

Files with missing lines	Coverage Δ
sentry_sdk/integrations/typer.py	0.00% <0.00%> (ø)

... and 3 files with indirect coverage changes