feat(search): Set default dialect to 2 for Redis Search commands (#2895)

- The default dialect `DEFAULT_DIALECT`  is now set to '2'
- Automatically append DIALECT parameter to search commands when not explicitly specified

packages/search/lib/commands/SPELLCHECK.ts

@@ -1,5 +1,6 @@
 import { CommandParser } from '@redis/client/dist/lib/client/parser';
 import { RedisArgument, Command, ReplyUnion } from '@redis/client/dist/lib/RESP/types';
+import { DEFAULT_DIALECT } from '../dialect/default';
 
 export interface Terms {
   mode: 'INCLUDE' | 'EXCLUDE';
@@ -34,6 +35,8 @@ export default {
 
     if (options?.DIALECT) {
       parser.push('DIALECT', options.DIALECT.toString());
+    } else {
+      parser.push('DIALECT', DEFAULT_DIALECT);
     }
   },
   transformReply: {