Lock faraday to version 1.x

[st0012]

See #1663 for more information.

[codecov-commenter]

Codecov Report

Merging #1664 (3f54313) into master (7fb3092) will increase coverage by 0.75%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1664      +/-   ##
==========================================
+ Coverage   97.71%   98.47%   +0.75%     
==========================================
  Files          59      136      +77     
  Lines        2406     7656    +5250     
==========================================
+ Hits         2351     7539    +5188     
- Misses         55      117      +62     

Impacted Files	Coverage Δ
sentry-ruby/lib/sentry/event.rb	98.87% <0.00%> (ø)
sentry-ruby/spec/sentry/linecache_spec.rb	100.00% <0.00%> (ø)
sentry-ruby/lib/sentry/interfaces/stacktrace.rb	95.55% <0.00%> (ø)
sentry-ruby/spec/sentry/breadcrumb_buffer_spec.rb	100.00% <0.00%> (ø)
sentry-ruby/lib/sentry/release_detector.rb	100.00% <0.00%> (ø)
...ntry-ruby/spec/sentry/client/event_sending_spec.rb	99.60% <0.00%> (ø)
sentry-ruby/spec/sentry/event_spec.rb	100.00% <0.00%> (ø)
sentry-ruby/lib/sentry/scope.rb	100.00% <0.00%> (ø)
sentry-ruby/lib/sentry/breadcrumb_buffer.rb	100.00% <0.00%> (ø)
...ry-ruby/spec/sentry/breadcrumb/http_logger_spec.rb	100.00% <0.00%> (ø)
... and 67 more

---

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[st0012]

@sl0thentr0py I'll backport this to the 4-8 branch.