test: fix internet/test-dns

The `nodejs.org` domain has now two TXT records.
Do not verify the exact number of records returned (only their shape),
and check that one of them is the SPF.

PR-URL: #59660
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>

Author: targos

test/internet/test-dns.js

@@ -523,9 +523,9 @@ TEST(function test_resolveTlsa_failure(done) {
 
 TEST(async function test_resolveTxt(done) {
   function validateResult(result) {
-    assert.ok(Array.isArray(result[0]));
-    assert.strictEqual(result.length, 1);
-    assert(result[0][0].startsWith('v=spf1'));
+    assert.ok(result.length > 0);
+    assert.ok(result.every((elem) => Array.isArray(elem) && elem.length === 1));
+    assert.ok(result.some((elem) => elem[0].startsWith('v=spf1')));
   }
 
   validateResult(await dnsPromises.resolveTxt(addresses.TXT_HOST));