Rename CancellationTokenSourceFactory method

[znakeeye]

Description

CancellationTokenSourceFactory() is not a CancellationTokenSource factory. It's a CancellationToken factory and should therefore be called CancellationTokenFactory.

Steps to Reproduce

n/a

Platform with bug

WPF

Affected platforms

Windows

Did you find any workaround?

No response

Relevant log output

No response