The file in my package was extracted from Windows 10 1909 updated Dec 2019, so was newer than yours.
This package was a tempoary workaround ofcause. Still waiting for MS fixing, and can not using any utility such as sfc, file will be restored.
That is strange, because even with today's update to build 18363.628 the uaspstor.sys file is still dated 10/6/2019 just a slightly different time from the previous one, yet the content is identical to the file in your zip.
Perhaps it was copied without preserving the date and time ? Unless the packages for different countries have different dates ?
I don't think the date of the driver is depending on the time you do the update, but when the file was originally created.
Directory of C:\Windows\System32\drivers
10/06/2019 06:56 PM 79,376 uaspstor.sys
1 File(s) 79,376 bytes
0 Dir(s) 420,104,019,968 bytes free
I didn't made any changes to this file. This file was extract from MSDN ISO image file, "cn_windows_10_business_editions_version_1909_updated_dec_2019_x64_dvd_262ac8af.iso", you can verfied it yourself.
And you can also take look at the digital signature of uaspstor.sys:

It was signed on 2019-12-07 08:59:27, so it was newer than yours absolutely.