Wrap StarletteRequestExtractor in capture_internal_exceptions

[sl0thentr0py]

Fixes #1550

If the header type is not consistent with the body, the SDK currently throws internally.

before

(venv) ➜  fastapi git:(main) ✗ curl -X 'POST' \
  'http://localhost:8000/token' \
  -H 'accept: application/json' \
  -H 'Content-Type: application/json' \
  -d 'grant_type=&username=johndoe&password=secret&scope=&client_id=&client_secret='
Internal Server Error

after

(venv) ➜  fastapi git:(main) ✗ curl -X 'POST' \
  'http://localhost:8000/token' \
  -H 'accept: application/json' \
  -H 'Content-Type: application/json' \
  -d 'grant_type=&username=johndoe&password=secret&scope=&client_id=&client_secret='
{"detail":[{"loc":["body","username"],"msg":"field required","type":"value_error.missing"},{"loc":["body","password"],"msg":"field required","type":"value_error.missing"}]}%

[mdczaplicki]

Hey, any ETA for new patch version?

[vladanpaunovic]

@mdczaplicki, we submitted a release, you can follow it up here getsentry/publish#1283