Deprecate capture_exception_frame_locals in favor of include_local_variables

[st0012]

Closes #1986

[codecov]

Codecov Report

Base: 98.57% // Head: 98.57% // Decreases project coverage by -0.01% ⚠️

Coverage data is based on head (4131b43) compared to base (75f289d).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1993      +/-   ##
==========================================
- Coverage   98.57%   98.57%   -0.01%     
==========================================
  Files         157      157              
  Lines       10056    10073      +17     
==========================================
+ Hits         9913     9929      +16     
- Misses        143      144       +1     

Impacted Files	Coverage Δ
sentry-ruby/lib/sentry/test_helper.rb	100.00% <ø> (ø)
sentry-ruby/lib/sentry-ruby.rb	96.47% <100.00%> (ø)
sentry-ruby/lib/sentry/configuration.rb	98.53% <100.00%> (+0.02%)	⬆️
sentry-ruby/spec/sentry/configuration_spec.rb	100.00% <100.00%> (ø)
...y-ruby/spec/sentry/rack/capture_exceptions_spec.rb	100.00% <100.00%> (ø)
sentry-ruby/spec/sentry_spec.rb	99.80% <100.00%> (ø)
sentry-resque/lib/sentry/resque.rb	97.22% <0.00%> (-2.78%)	⬇️

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[st0012]

@sl0thentr0py The coverage drop happens in sentry-resque, which is completely unrelated to the changes.
I think there's some mis-setup from me on multi-folder reporting. But I don't feel like fine-tuning it atm.

[sl0thentr0py]

yea this codecov thing is a bit annoying atm :/

I'll try to clean it up next week.