Support for ActiveSupport log subscribers

[solnic]

This adds config.rails.structured_logging setup that can be used to enable structured logging for common rails components:

• action_controller
• active_record
• action_mailer
• active_job

Closes #2605

Screenshots

[codecov]

Codecov Report

❌ Patch coverage is 91.66667% with 29 lines in your changes missing coverage. Please review.
✅ Project coverage is 97.12%. Comparing base (a3d87a6) to head (93903de).

Files with missing lines	Patch %	Lines
...try/rails/log_subscribers/active_job_subscriber.rb	87.27%	7 Missing ⚠️
...ls/log_subscribers/action_controller_subscriber.rb	91.83%	4 Missing ⚠️
.../rails/log_subscribers/active_record_subscriber.rb	93.84%	4 Missing ⚠️
...entry-rails/lib/sentry/rails/structured_logging.rb	80.95%	4 Missing ⚠️
sentry-rails/lib/sentry/rails/configuration.rb	80.00%	3 Missing ⚠️
sentry-ruby/lib/sentry/configuration.rb	50.00%	3 Missing ⚠️
sentry-rails/lib/sentry/rails/log_subscriber.rb	95.00%	1 Missing ⚠️
.../rails/log_subscribers/action_mailer_subscriber.rb	96.87%	1 Missing ⚠️
sentry-ruby/lib/sentry-ruby.rb	75.00%	1 Missing ⚠️
sentry-ruby/lib/sentry/test_helper.rb	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2676      +/-   ##
==========================================
- Coverage   97.44%   97.12%   -0.33%     
==========================================
  Files         136      144       +8     
  Lines        5317     5660     +343     
==========================================
+ Hits         5181     5497     +316     
- Misses        136      163      +27     

Components	Coverage Δ
sentry-ruby	97.72% <91.93%> (-0.05%)	⬇️
sentry-rails	94.75% <91.60%> (-1.36%)	⬇️
sentry-sidekiq	96.57% <ø> (ø)
sentry-resque	94.44% <ø> (ø)
sentry-delayed_job	94.68% <ø> (ø)
sentry-opentelemetry	99.31% <ø> (ø)

Files with missing lines	Coverage Δ
sentry-rails/lib/sentry/rails.rb	100.00% <100.00%> (ø)
...b/sentry/rails/log_subscribers/parameter_filter.rb	100.00% <100.00%> (ø)
sentry-rails/lib/sentry/rails/railtie.rb	98.83% <100.00%> (+0.05%)	⬆️
sentry-ruby/lib/sentry/debug_structured_logger.rb	100.00% <100.00%> (ø)
sentry-rails/lib/sentry/rails/log_subscriber.rb	95.00% <95.00%> (ø)
.../rails/log_subscribers/action_mailer_subscriber.rb	96.87% <96.87%> (ø)
sentry-ruby/lib/sentry-ruby.rb	98.73% <75.00%> (-0.41%)	⬇️
sentry-ruby/lib/sentry/test_helper.rb	97.95% <85.71%> (-2.05%)	⬇️
sentry-rails/lib/sentry/rails/configuration.rb	94.82% <80.00%> (-5.18%)	⬇️
sentry-ruby/lib/sentry/configuration.rb	97.42% <50.00%> (-0.94%)	⬇️
... and 4 more

... and 1 file with indirect coverage changes

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[seer-by-sentry]

Potential bug: A typo in the structured_logging= setter (.enable instead of .enabled) causes a NoMethodError, crashing the application when enabling the feature.

• Description: The structured_logging= setter method contains a typo. When true is passed as the value, the code attempts to call @structured_logging.enable = true. However, the StructuredLoggingConfiguration class does not have an enable= method; it only defines enabled=. This will raise a NoMethodError when a user attempts to enable the feature with config.rails.structured_logging = true, causing the application to crash during its initialization phase. The configuration works as expected when set to false.

• Suggested fix: In the structured_logging= method, change the line @structured_logging.enable = true to @structured_logging.enabled = true. This aligns the setter with the enabled attribute defined in the StructuredLoggingConfiguration class, resolving the NoMethodError.
  _{severity: 0.95, confidence: 1.0}

_{Did we get this right? 👍 / 👎 to inform future reviews.}

[github-actions]

	Fails
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## Unreleased

- Support for ActiveSupport log subscribers ([#2676](https://github.com/getsentry/sentry-ruby/pull/2676))

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Generated by 🚫 dangerJS against 98226ec

[cursor]

Bug: Inconsistent CGI Gem Requirement Across Ruby Versions

The cgi gem is now required for Ruby 2.5+, but it was only extracted from the standard library in Ruby 3.0. This leads to unnecessary installation and potential conflicts for Ruby 2.5-2.7, where it's already built-in.