chore: _Kind is causing issues in graphql 15 (#1642)

was breaking parser in some typescript builds

Author: acao

packages/graphql-language-service-parser/src/types.ts

@@ -1,5 +1,4 @@
 import { Kind } from 'graphql';
-import { _Kind } from 'graphql/language/kinds';
 import { Maybe } from 'graphql-language-service-types';
 import CharacterStream from './CharacterStream';
 
@@ -114,7 +113,7 @@ export const RuleKinds = {
   ...AdditionalRuleKinds,
 };
 
-export type _RuleKinds = _Kind & typeof AdditionalRuleKinds;
+export type _RuleKinds = typeof Kind & typeof AdditionalRuleKinds;
 
 export type RuleKind = _RuleKinds[keyof _RuleKinds];
 export type RuleKindEnum = RuleKind;