Make Duende.AccessTokenManagement Aot Compatible.

[jbzellerEudo]

Would it be possible to make the library Aot Compatible ?

We're just a couple serialization api calls away from the project being compatible. We just require one Source Generated away from this.

I am creating a PR if that sounds reasonable for this library to be published that way.

[RolandGuijt]

Thanks so much for your PR!
To give us some insights into the use cases for this, can you please let us know why you need AOT compatibility?