add decimal support to ruby generators (#10484)

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractRubyCodegen.java

@@ -78,6 +78,7 @@ abstract public class AbstractRubyCodegen extends DefaultCodegen implements Code
         typeMapping.put("float", "Float");
         typeMapping.put("double", "Float");
         typeMapping.put("number", "Float");
+        typeMapping.put("decimal", "Float");
         typeMapping.put("date", "Date");
         typeMapping.put("DateTime", "Time");
         typeMapping.put("array", "Array");

samples/client/petstore/ruby-faraday/docs/FormatTest.md

@@ -10,7 +10,7 @@
 | **number** | **Float** |  |  |
 | **float** | **Float** |  | [optional] |
 | **double** | **Float** |  | [optional] |
-| **decimal** | [**Decimal**](Decimal.md) |  | [optional] |
+| **decimal** | **Float** |  | [optional] |
 | **string** | **String** |  | [optional] |
 | **byte** | **String** |  |  |
 | **binary** | **File** |  | [optional] |

samples/client/petstore/ruby-faraday/lib/petstore/models/format_test.rb

@@ -85,7 +85,7 @@ module Petstore
         :'number' => :'Float',
         :'float' => :'Float',
         :'double' => :'Float',
-        :'decimal' => :'Decimal',
+        :'decimal' => :'Float',
         :'string' => :'String',
         :'byte' => :'String',
         :'binary' => :'File',

samples/client/petstore/ruby/docs/FormatTest.md

@@ -10,7 +10,7 @@
 | **number** | **Float** |  |  |
 | **float** | **Float** |  | [optional] |
 | **double** | **Float** |  | [optional] |
-| **decimal** | [**Decimal**](Decimal.md) |  | [optional] |
+| **decimal** | **Float** |  | [optional] |
 | **string** | **String** |  | [optional] |
 | **byte** | **String** |  |  |
 | **binary** | **File** |  | [optional] |

samples/client/petstore/ruby/lib/petstore/models/format_test.rb

@@ -85,7 +85,7 @@ module Petstore
         :'number' => :'Float',
         :'float' => :'Float',
         :'double' => :'Float',
-        :'decimal' => :'Decimal',
+        :'decimal' => :'Float',
         :'string' => :'String',
         :'byte' => :'String',
         :'binary' => :'File',