Fix specifiedByUrl -> specifiedByURL

According to spec URL in specifiedByURL must be uppercase

Author: no1seman

graphql/introspection.lua

@@ -346,11 +346,11 @@ __Type = types.object({
         end,
       },
 
-      specifiedByUrl = {
+      specifiedByURL = {
         kind = types.string,
         resolve = function(kind)
           if kind.__type == 'Scalar' then
-              return kind.specifiedByUrl
+              return kind.specifiedByURL
           end
         end,
       },

graphql/types.lua

@@ -96,7 +96,7 @@ function types.scalar(config)
     parseValue = config.parseValue,
     parseLiteral = config.parseLiteral,
     isValueOfTheType = config.isValueOfTheType,
-    specifiedByUrl = config.specifiedByUrl,
+    specifiedByURL = config.specifiedByURL,
   }
 
   instance.nonNull = types.nonNull(instance)

test/integration/graphql_test.lua

@@ -1427,7 +1427,7 @@ function g.test_custom_directives()
     t.assert_equals(errors, nil)
 end
 
-function g.test_specifiedByUrl_scalar_field()
+function g.test_specifiedByURL_scalar_field()
     local function callback(_, _)
         return nil
     end
@@ -1445,7 +1445,7 @@ function g.test_specifiedByUrl_scalar_field()
         isValueOfTheType = function(_)
             return true
         end,
-        specifiedByUrl = 'http://localhost',
+        specifiedByURL = 'http://localhost',
     })
 
     local query_schema = {
@@ -1461,7 +1461,7 @@ function g.test_specifiedByUrl_scalar_field()
     local data, errors = check_request(introspection.query, query_schema)
     local CustomInt_schema = util.find_by_name(data.__schema.types, 'CustomInt')
     t.assert_type(CustomInt_schema, 'table', 'CustomInt schema found on introspection')
-    t.assert_equals(CustomInt_schema.specifiedByUrl, 'http://localhost')
+    t.assert_equals(CustomInt_schema.specifiedByURL, 'http://localhost')
     t.assert_equals(errors, nil)
 end
 

test/integration/introspection.lua

@@ -24,7 +24,7 @@ return {
             kind
             name
             description
-            specifiedByUrl
+            specifiedByURL
             fields(includeDeprecated: true) {
                 name
                 description