doc: remove references to petstore (#21111)

Author: efcasado

modules/openapi-generator/src/main/resources/elixir/connection.ex.mustache

@@ -96,7 +96,7 @@ defmodule {{moduleName}}.Connection do
     of the function call, will be set as a bearer token in the
     `authorization` header.
   {{/hasOAuthMethods}}
-  - `options`: a keyword list of OpenAPIPetstore.Connection.options.
+  - `options`: a keyword list of {{moduleName}}.Connection.options.
 
   ### Returns
 
@@ -133,7 +133,7 @@ defmodule {{moduleName}}.Connection do
     that returns a bearer token.
   - `scopes_or_password`: a list of Strings represenging OAuth2 scopes, or
     a single string that is the password for the username provided.
-  - `options`: a keyword list of OpenAPIPetstore.Connection.options.
+  - `options`: a keyword list of {{moduleName}}.Connection.options.
 
   ### Returns
 
@@ -155,7 +155,7 @@ defmodule {{moduleName}}.Connection do
     of the function call, will be set as a bearer token in the
     `authorization` header.
   - `scopes`: a list of Strings represenging OAuth2 scopes.
-  - `options`: a keyword list of OpenAPIPetstore.Connection.options.
+  - `options`: a keyword list of {{moduleName}}.Connection.options.
 
   ### Returns
 

samples/client/petstore/elixir/lib/openapi_petstore/connection.ex

@@ -84,7 +84,7 @@ defmodule OpenapiPetstore.Connection do
   - `token`: a String or a function of arity one. This value, or the result
     of the function call, will be set as a bearer token in the
     `authorization` header.
-  - `options`: a keyword list of OpenAPIPetstore.Connection.options.
+  - `options`: a keyword list of OpenapiPetstore.Connection.options.
 
   ### Returns
 
@@ -112,7 +112,7 @@ defmodule OpenapiPetstore.Connection do
     that returns a bearer token.
   - `scopes_or_password`: a list of Strings represenging OAuth2 scopes, or
     a single string that is the password for the username provided.
-  - `options`: a keyword list of OpenAPIPetstore.Connection.options.
+  - `options`: a keyword list of OpenapiPetstore.Connection.options.
 
   ### Returns