test: generate bound model methods tests

[jooola]

In our bound models, many of the methods are only proxies to the api client methods. But our tests are always testing the full stack down to the HTTP requests. This lead to a lot of duplicate tests for the API client and the bound models methods.

This change removes the bound models methods tests, and uses a generic "proxy method test" for all our bound models.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.58%. Comparing base (131b142) to head (95940a2).
⚠️ Report is 43 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #546      +/-   ##
==========================================
+ Coverage   95.82%   96.58%   +0.76%     
==========================================
  Files          67       67              
  Lines        3401     3401              
==========================================
+ Hits         3259     3285      +26     
+ Misses        142      116      -26     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[jooola]

Depends on #564

[jooola]

The diff on this MR is really large, but the important bits are in f0b3622

To further check this PR is valid, I recommend looking at the coverage report and see that "nothing" changed.

[lukasmetzner]

Very cool 🚀