It's valid until my passport expiry date.
They are still following this temporary measure- https://ircc.canada.ca/english/helpcentre/answer.asp?qnum=208&top=22
Application Date: Dec 18, 2021
Eligibility Start Date: Jan 4, 2022
Passport Request: Feb 15, 2022
Passport Delivered to CPC: Feb 18, 2022
Counterfoil: Feb 28, 2022
Return Tracking Activated: March 2, 2022
Passport Received: March 3, 2022