fix for paket pack command

[Thorium]

Before:

A:\LemonadeProvider>.paket\paket.exe pack src\LemonadeProvider.Runtime\paket.template --version 0.0.1
Paket version 5.196.2
Performance:
 - Runtime: 539 milliseconds
Paket failed with
-> Unable to create directory A:\LemonadeProvider\src\LemonadeProvider.Runtime\paket.template.

After:

A:\LemonadeProvider>.paket\paket.exe pack src\LemonadeProvider.Runtime --version 0.0.1
Paket version 5.196.2
Packaging: A:\LemonadeProvider\src\LemonadeProvider.Runtime\paket.template
Wrote: A:\LemonadeProvider\src\LemonadeProvider.Runtime\LemonadeProvider.0.0.1.nupkg
Performance:
 - Runtime: 1 second

[dsyme]

Thanks for this!