Python SDK Truncation Logic

[szokeasaurusrex]

Implement parent issue for Python SDK

What is currently being trimmed:

• request bodies (default: "medium", can be exempted from trimming with "always")
  • possibility to adjust max_request_body_size should stay
• databags (affects local vars too, max breadth: 10, max_depth: 5)
  • limit should be removed
• max value length (trims strings, default: 100 000, (before: 1024, but we increased this because we were trimming ai messages)
  • limit should be removed/bumped very high
• breadcrumbs (max 100)
  • limit should stay
• transport queue (max 100)
  • limit should stay
• spans in a transaction (max 1000)
  • limit should stay
• some integrations have additional trimming logic (Redis: 1024 max data size)
  • limit should be removed

1. Double-check the leave/remove trimming decisions above with @cleptric and/or @adinauer's Notion doc.
2. Test removing individual limits wrt to issue grouping in Sentry. If grouping changes, it's a breaking change.

See also:

• Remove event data trimming #3310
• ref: Remove MAX_EVENT_BYTES #4630
• [do not merge] Remove databag trimming #4645