Merge pull request #84 from voxpupuli/ffi

feat: remove ffi pinning, does work again

Author: rwaffen

voxbox/Gemfile

@@ -15,9 +15,6 @@ gem 'rubocop-performance',   ENV['RUBYGEM_RUBOCOP_PERFORMANCE']
 gem 'onceover',              ENV['RUBYGEM_ONCEOVER']
 gem 'rspec_junit_formatter', ENV['RUBYGEM_RSPEC_JUNIT_FORMATTER']
 
-# pinned versions because of bugs
-gem 'ffi', '~> 1.16.3' # ffi 1.17.0 has change dependencies - see https://github.com/ffi/ffi/issues/1105
-
 # CVE fixes
 gem 'cgi', '~> 0.4.1'             # cgi 0.1.0 has CVEs - remove default and install upstream replacement
 gem 'stringio', '~> 3.1'          # stringio 0.1.0 has CVEs - remove default and install upstream replacement