fix(client-reports): Emit callback_error when a processor raises

[sentrivana]

We're not recording the correct reason if a event/error processor raises (should be callback_error).

Closes https://linear.app/getsentry/issue/PY-2888/drop-events-if-a-processor-raises

[linear-code]

PY-2888

[github-actions]

Codecov Results 📊

✅ 55725 passed | ⏭️ 2872 skipped | Total: 58597 | Pass Rate: 95.1% | Execution Time: 152m 25s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📉 -79285
Passed Tests	📉 -74880
Failed Tests	📉 -1
Skipped Tests	📉 -4404

➖ Removed Tests (1)

View removed tests

• test_no_integration[False-False]
  • File: tests.integrations.litellm.test_litellm

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 2070 uncovered lines.
❌ Project coverage is 90.1%. Comparing base (c92ee01) to head (8d60cfa).

Files with missing lines (1)

File	Patch %	Lines
sentry_sdk/scope.py	100.00%	⚠️ 2 partials

Coverage diff

@@            Coverage Diff             @@
##        master       #PR       +/-##
==========================================
- Coverage    90.28%    90.10%    -0.18%
==========================================
  Files          202       193        -9
  Lines        26639     20917     -5722
  Branches      9926      7208     -2718
==========================================
+ Hits         24050     18847     -5203
- Misses        2589      2070      -519
- Partials      1509      1233      -276

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[alexander-alderman-webb]

You could also directly log the exception here (like capture_internal_exceptions() would).
I think this is also worse in some ways though, so up to you.

Suggested change

	except Exception:
	exception_raised = True
	raise
	except Exception as exc:
	exception_raised = True
	logger.error("Internal error in sentry_sdk", exc_info=sys.exc_info())

[sentrivana]

I think the simple log we added is sufficient for now. If we have requests for more info, we can add this.