Feature/Ability to use RSET, configure delay responses (#45)

* Updated SmtpMock::CommandLineArgsBuilder::PERMITTED_ATTRS, tests
* Updated rubocop/codeclimate/circleci configs
* Updated gem development dependencies
* Updated gem version, changelog

.circleci/config.yml

@@ -6,7 +6,7 @@ defaults: &defaults
     - image: cimg/ruby:<< parameters.ruby-version >>
 
 orbs:
-  ruby: circleci/ruby@1.7.1
+  ruby: circleci/ruby@1.8.0
 
 references:
   restore_bundle_cache: &restore_bundle_cache
@@ -122,7 +122,7 @@ jobs:
       - checkout
       - <<: *use_compatible_gemspec
       - ruby/install-deps:
-          bundler-version: "2.3.13"
+          bundler-version: "2.3.18"
           with-cache: false
           path: './vendor/custom_bundle'
       - <<: *system_dependencies

.circleci/gemspec_latest

@@ -31,7 +31,7 @@ Gem::Specification.new do |spec|
 
   spec.add_runtime_dependency 'dry-struct', '~> 1.4'
 
-  spec.add_development_dependency 'bundler-audit', '~> 0.9.0.1'
+  spec.add_development_dependency 'bundler-audit', '~> 0.9.1'
   spec.add_development_dependency 'fasterer', '~> 0.10.0'
   spec.add_development_dependency 'ffaker', '~> 2.21'
   spec.add_development_dependency 'net-smtp', '~> 0.3.1'
@@ -40,8 +40,8 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rake', '~> 13.0', '>= 13.0.6'
   spec.add_development_dependency 'reek', '~> 6.1', '>= 6.1.1'
   spec.add_development_dependency 'rspec', '~> 3.11'
-  spec.add_development_dependency 'rubocop', '~> 1.29', '>= 1.29.1'
-  spec.add_development_dependency 'rubocop-performance', '~> 1.13', '>= 1.13.3'
-  spec.add_development_dependency 'rubocop-rspec', '~> 2.10'
+  spec.add_development_dependency 'rubocop', '~> 1.32'
+  spec.add_development_dependency 'rubocop-performance', '~> 1.14', '>= 1.14.3'
+  spec.add_development_dependency 'rubocop-rspec', '~> 2.12', '>= 2.12.1'
   spec.add_development_dependency 'simplecov', '~> 0.21.2'
 end

.codeclimate.yml

@@ -7,7 +7,7 @@ checks:
 plugins:
   rubocop:
     enabled: true
-    channel: rubocop-1-29
+    channel: rubocop-1-32
 
   reek:
     enabled: true