test: udpate test comment description

test-buffer-failed-alloc-typed-arrays.js is working fine, but the
description was not correct.

PR-URL: #28351
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

test/parallel/test-buffer-failed-alloc-typed-arrays.js

@@ -23,7 +23,7 @@ const allocators = [
 for (const allocator of allocators) {
   for (const size of sizes) {
     try {
-      // These allocations are known to fail. If they do,
+      // Some of these allocations are known to fail. If they do,
       // Uint32Array should still produce a zeroed out result.
       allocator(size);
     } catch {