Add hint: support to Sentry::Rails::ErrorSubscriber

[modosc]

closes #2228

[codecov[bot]]

Codecov Report

Merging #2235 (dc5d352) into master (bd4f58a) will increase coverage by 0.00%. The diff coverage is 100.00%.

:exclamation: Current head dc5d352 differs from pull request most recent head e836902. Consider uploading reports for the commit e836902 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2235 +/- ## ======================================= Coverage 97.42% 97.42% ======================================= Files 102 102 Lines 3800 3804 +4 ======================================= + Hits 3702 3706 +4 Misses 98 98 ``` | [Components](https://app.codecov.io/gh/getsentry/sentry-ruby/pull/2235/components?src=pr&el=components&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry) | Coverage Δ | | |---|---|---| | [sentry-ruby](https://app.codecov.io/gh/getsentry/sentry-ruby/pull/2235/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry) | `98.13% <ø> (ø)` | | | [sentry-rails](https://app.codecov.io/gh/getsentry/sentry-ruby/pull/2235/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry) | `95.05% <100.00%> (+0.03%)` | :arrow_up: | | [sentry-sidekiq](https://app.codecov.io/gh/getsentry/sentry-ruby/pull/2235/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry) | `94.70% <ø> (ø)` | | | [sentry-resque](https://app.codecov.io/gh/getsentry/sentry-ruby/pull/2235/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry) | `92.06% <ø> (ø)` | | | [sentry-delayed_job](https://app.codecov.io/gh/getsentry/sentry-ruby/pull/2235/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry) | `94.44% <ø> (ø)` | | | [sentry-opentelemetry](https://app.codecov.io/gh/getsentry/sentry-ruby/pull/2235/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry) | `100.00% <ø> (ø)` | | | [Files](https://app.codecov.io/gh/getsentry/sentry-ruby/pull/2235?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry) | Coverage Δ | | |---|---|---| | [sentry-rails/lib/sentry/rails/error\_subscriber.rb](https://app.codecov.io/gh/getsentry/sentry-ruby/pull/2235?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry#diff-c2VudHJ5LXJhaWxzL2xpYi9zZW50cnkvcmFpbHMvZXJyb3Jfc3Vic2NyaWJlci5yYg==) | `100.00% <100.00%> (ø)` | |