Remove `config.capture_exception_frame_locals`

[st0012]

It's been marked as deprecated for a while now and should be removed in the next major release.

Additional note: some TracePoint events can invalidate YJIT's optimization, which was a main concern of the current implementation around locals capturing. But at least until Ruby 3.3, the raise event we're using is NOT one of them.

[codecov[bot]]

Codecov Report

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

:exclamation: No coverage uploaded for pull request base (6.0-dev@7d86bb2). Click here to learn what that means.

Additional details and impacted files

@@            Coverage Diff             @@
##             6.0-dev    #2306   +/-   ##
==========================================
  Coverage           ?   98.66%           
==========================================
  Files              ?      201           
  Lines              ?    13075           
  Branches           ?        0           
==========================================
  Hits               ?    12901           
  Misses             ?      174           
  Partials           ?        0           

Components	Coverage Δ
sentry-ruby	99.05% <0.00%> (?)
sentry-rails	97.26% <0.00%> (?)
sentry-sidekiq	96.98% <0.00%> (?)
sentry-resque	96.76% <0.00%> (?)
sentry-delayed_job	98.91% <0.00%> (?)
sentry-opentelemetry	100.00% <0.00%> (?)

Files	Coverage Δ
sentry-rails/spec/dummy/test_rails_app/app.rb	92.64% <100.00%> (ø)
sentry-ruby/lib/sentry/configuration.rb	98.75% <ø> (ø)
sentry-ruby/spec/sentry/configuration_spec.rb	100.00% <ø> (ø)