Use Swagger Codegen v2

Swagger Codegen v3 has too many changes to the data API, so we're going
to keep using v2 for now.

.swagger-codegen/VERSION

@@ -1 +1 @@
-3.0.51
+2.4.37

Gemfile

@@ -3,7 +3,5 @@ source 'https://rubygems.org'
 gemspec
 
 group :development, :test do
-  gem 'rake', '~> 13.0.1'
-  gem 'pry-byebug'
-  gem 'rubocop', '~> 0.66.0'
+  gem 'rake', '~> 12.3.3'
 end

Gemfile.lock

@@ -9,34 +9,26 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
+    ZenTest (4.12.1)
     addressable (2.8.5)
       public_suffix (>= 2.0.2, < 6.0)
-    ast (2.4.2)
-    byebug (11.1.3)
-    coderay (1.1.3)
+    autotest (4.4.6)
+      ZenTest (>= 4.4.1)
+    autotest-fsevent (0.2.20)
+      sys-uname
+    autotest-growl (0.2.16)
+    autotest-rails-pure (4.1.2)
+    crack (0.4.5)
+      rexml
     diff-lcs (1.3)
     ethon (0.16.0)
       ffi (>= 1.15.0)
     ffi (1.16.3)
-    jaro_winkler (1.5.6)
+    hashdiff (1.0.1)
     json (2.6.3)
-    method_source (1.0.0)
-    parallel (1.23.0)
-    parser (3.2.2.4)
-      ast (~> 2.4.1)
-      racc
-    pry (0.14.2)
-      coderay (~> 1.1)
-      method_source (~> 1.0)
-    pry-byebug (3.10.1)
-      byebug (~> 11.0)
-      pry (>= 0.13, < 0.15)
-    psych (5.1.1.1)
-      stringio
     public_suffix (5.0.4)
-    racc (1.7.3)
-    rainbow (3.1.1)
-    rake (13.0.6)
+    rake (12.3.3)
+    rexml (3.2.6)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)
@@ -50,29 +42,29 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-support (3.9.3)
-    rubocop (0.66.0)
-      jaro_winkler (~> 1.5.1)
-      parallel (~> 1.10)
-      parser (>= 2.5, != 2.5.1.1)
-      psych (>= 3.1.0)
-      rainbow (>= 2.2.2, < 4.0)
-      ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 1.6)
-    ruby-progressbar (1.13.0)
-    stringio (3.1.0)
+    sys-uname (1.2.3)
+      ffi (~> 1.1)
     typhoeus (1.4.1)
       ethon (>= 0.9.0)
-    unicode-display_width (1.5.0)
+    vcr (3.0.3)
+    webmock (1.24.6)
+      addressable (>= 2.3.6)
+      crack (>= 0.3.2)
+      hashdiff
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  autotest (~> 4.4, >= 4.4.6)
+  autotest-fsevent (~> 0.2, >= 0.2.12)
+  autotest-growl (~> 0.2, >= 0.2.16)
+  autotest-rails-pure (~> 4.1, >= 4.1.2)
   commonlit-clever-ruby!
-  pry-byebug
-  rake (~> 13.0.1)
+  rake (~> 12.3.3)
   rspec (~> 3.6, >= 3.6.0)
-  rubocop (~> 0.66.0)
+  vcr (~> 3.0, >= 3.0.1)
+  webmock (~> 1.24, >= 1.24.3)
 
 BUNDLED WITH
    2.4.12