Unfortunately, you can't.
The unreimbursed employee expenses deduction has been suspended in tax years 2018 through 2025.
Please see the TurboTax FAQ "Where do I enter job-related employee expenses? (Form 2106)" below for more information.
https://ttlc.intuit.com/replies/4800418
[Edited 2/25/2020|7:11 PST]