Add position / positions to reserved keywords (#12800)

Author: ijreilly

packages/twenty-server/src/engine/metadata-modules/utils/validate-metadata-name-is-not-reserved-keyword.ts

@@ -60,6 +60,8 @@ const reservedKeywords = [
   'index',
   'relation',
   'relations',
+  'position',
+  'positions',
 ];
 
 export const validateMetadataNameIsNotReservedKeywordOrThrow = (