Send request payload in Apollo integrations

[adinauer]

Problem Statement

Currently the request payload is not sent by Apollo (v2 and v3) integrations. We should send it up to https://docs.sentry.io/platforms/java/configuration/options/#max-request-body-size

Solution Brainstorm

Take a look at other integrations that already send the request body.

[adinauer]

Does PII stripping run on it?
Should it be guarded behind send default pii?

Created getsentry/team-mobile#41 to track across SDKs

Make sure it's documented in develop docs how integrations should send request body.