Redirect URL is not attached in the token request when PKCE is enabled

[pavinduLakshan]

Is your feature request related to a problem? Please describe.

$subject

Describe the solution you'd like

The fix[1] has already been merged, but a new release has not been created.

[1] #222

Describe alternatives you've considered

N/A

Additional context

N/A

[felixweinberger]

Fixed in #222 and released.