Fix last updated date

[rajbos]

Last updated date string is wrong.

Update ran on 20210626 string stored is 20210726, string format must be off

Check the code here:

actions-marketplace/src/updater.ps1

Line 97 in 7c3df4f

lastUpdated = (Get-Date -AsUTC -UFormat '+%Y%m%d_%H%M')

[rajbos]

Hmm, Get-Date code works just fine in PowerShell :-(