add report_after_job_retries support for ActiveJob

[modosc]

Description

this pr adds report_after_job_retries support to ActiveJob (configured via config.rails.active_job_report_after_job_retries).

the easiest way to do this would have been to use retry_on in the base ActiveJob class (similar to here) but that's difficult to do properly which is (i think) why the current ActiveJob integration doesn't do it.

instead we can take advantage of the retry_stopped.active_job notification that's published when a job runs out of retries. this makes our setup a single call to ActiveSupport::Notifications.subscribe.

fixes #2499

[codecov]

Codecov Report

Attention: Patch coverage is 65.00000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 96.99%. Comparing base (a1d2941) to head (f8a24b2).

Files with missing lines	Patch %	Lines
sentry-rails/lib/sentry/rails/active_job.rb	53.33%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2500      +/-   ##
==========================================
- Coverage   98.16%   96.99%   -1.18%     
==========================================
  Files         128      126       -2     
  Lines        4847     4787      -60     
==========================================
- Hits         4758     4643     -115     
- Misses         89      144      +55     

Components	Coverage Δ
sentry-ruby	98.57% <ø> (ø)
sentry-rails	87.26% <65.00%> (-9.81%)	⬇️
sentry-sidekiq	97.09% <ø> (ø)
sentry-resque	92.85% <ø> (ø)
sentry-delayed_job	95.65% <ø> (ø)
sentry-opentelemetry	99.31% <ø> (+0.68%)	⬆️

Files with missing lines	Coverage Δ
sentry-rails/lib/sentry/rails/configuration.rb	95.45% <100.00%> (-4.55%)	⬇️
sentry-rails/lib/sentry/rails/railtie.rb	87.95% <100.00%> (-10.80%)	⬇️
sentry-rails/lib/sentry/rails/active_job.rb	87.71% <53.33%> (-12.29%)	⬇️

... and 10 files with indirect coverage changes

[sl0thentr0py]

@solnic could you review and get this merged if you have time?