ref(crons): Use camelcase for errors

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 76.86%. Comparing base (bc6a0f8) to head (cd6b774). Report is 10 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #70965 +/- ## ========================================== - Coverage 77.91% 76.86% -1.05% ========================================== Files 6512 6512 Lines 290214 290216 +2 Branches 50236 50234 -2 ========================================== - Hits 226122 223087 -3035 - Misses 57798 60739 +2941 - Partials 6294 6390 +96 ``` | [Files](https://app.codecov.io/gh/getsentry/sentry/pull/70965?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry) | Coverage Δ | | |---|---|---| | [src/sentry/monitors/consumers/monitor\_consumer.py](https://app.codecov.io/gh/getsentry/sentry/pull/70965?src=pr&el=tree&filepath=src%2Fsentry%2Fmonitors%2Fconsumers%2Fmonitor_consumer.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry#diff-c3JjL3NlbnRyeS9tb25pdG9ycy9jb25zdW1lcnMvbW9uaXRvcl9jb25zdW1lci5weQ==) | `88.25% <ø> (ø)` | | | [src/sentry/monitors/processing\_errors/errors.py](https://app.codecov.io/gh/getsentry/sentry/pull/70965?src=pr&el=tree&filepath=src%2Fsentry%2Fmonitors%2Fprocessing_errors%2Ferrors.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry#diff-c3JjL3NlbnRyeS9tb25pdG9ycy9wcm9jZXNzaW5nX2Vycm9ycy9lcnJvcnMucHk=) | `97.89% <100.00%> (ø)` | | | [src/sentry/monitors/testutils.py](https://app.codecov.io/gh/getsentry/sentry/pull/70965?src=pr&el=tree&filepath=src%2Fsentry%2Fmonitors%2Ftestutils.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry#diff-c3JjL3NlbnRyeS9tb25pdG9ycy90ZXN0dXRpbHMucHk=) | `94.73% <ø> (ø)` | | ... and [264 files with indirect coverage changes](https://app.codecov.io/gh/getsentry/sentry/pull/70965/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry)