test: allow numeric string for lookupService test

Fixes: #42164 If the given port number isn't associated with any service name, the `service` resolved from `dns.lookupService` can be a numeric string representing the port number. PR-URL: #42596 Reviewed-By: Mohammed Keyvanzadeh <[email protected]> Reviewed-By: Akhil Marsonya <[email protected]> Reviewed-By: Richard Lau <[email protected]>

Author: daeyeon

test/parallel/test-dns-lookupService-promises.js

@@ -6,7 +6,7 @@ const assert = require('assert');
 constdnsPromises=require('dns').promises;
 
 dnsPromises.lookupService('127.0.0.1',22).then(common.mustCall((result)=>{
-assert.strictEqual(result.service,'ssh');
+assert(['ssh','22'].includes(result.service));
 assert.strictEqual(typeofresult.hostname,'string');
 assert.notStrictEqual(result.hostname.length,0);
 }));