[Pkg-rust-maintainers] Bug#1043016: rust-fastrand: Please upgrade to v2

[peter green]

 > Please updagre to (or separately provide) newer upstream branch v2.

I've taken a priliminary look at this and it looks like it's probably
good to go. I've uploaded it to experimental.

Four of the rdeps are your packages, can you prepare updates for them

Package: rsass
Package: rust-async-executor
Package: rust-async-lock
Package: rust-blocking