Although NY is aggressive on remote workers for NY based employers, the single day rule applies*. You do not need to file a NY return. The fact that your employer did not report it as NY source income, in boxes 15-20 of your W-2, supports this position.
*It requires at least 1 day in NY to be subject to NYS income tax, even when it's for your own convenience.
References:
https://ttlc.intuit.com/community/taxes/discussion/re-will-i-owe-any-california-income-tax/01/276936...
https://ttlc.intuit.com/community/state-taxes/discussion/re-starting-new-job-with-office-in-new-york...
