build(deps): update rand to version 0.10

[jtojnar]

https://github.com/rust-random/rand/releases/tag/0.10.0

Notable changes:

• Renamed *RngCore in rand_core to *Rng
• Renamed *Rng in rand to *RngExt
• Moved rand_core::OsRng to rand and renamed to SysRng
• Dropped from_os_rng constructor.

[jtojnar]

Hmm, it is not clear to me why it fails in CI with:

error: failed to select a version for `rand`.
    ... required by package `bolero v0.13.4 (/home/runner/work/bolero/bolero/lib/bolero)`
versions that meet the requirements `^0.10` are: 0.10.1, 0.10.0

the package `bolero` depends on `rand`, with features: `getrandom` but `rand` does not have these features.
 It has an optional dependency with that name, but that dependency uses the "dep:" syntax in the features table, so it does not have an implicit feature with that name.


failed to select a version for `rand` which could resolve this conflict
Error: command exited with non-zero code `cargo test`: 101

It should be correct that there is no getrandom feature since that dependency is subsumed by std_rng feature:

https://github.com/rust-random/rand/blob/0.10.1/Cargo.toml#L42

And I do not see anything trying to enable rand/getrandom in bolero.

It appears to work locally.

[jtojnar]

I can reproduce locally if I lower the Rust version to 1.68.0.

Though the only thing that could possibly cause this could be getrandom?/std feature dependency in https://github.com/rust-random/rand/blob/0.10.1/Cargo.toml#L36 being parsed as getrandom. But weak dependency features are supposed to be stable since Rust 1.60.

If I use rand 0.10 with default-features = false, it fails with a different error, hinting that the bump might not be possible until we increase MSRV to 1.85.0, which introduced the 2024 edition:

error: failed to parse manifest at `/home/jtojnar/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/rand_core-0.10.0/Cargo.toml`

Caused by:
  failed to parse the `edition` key

Caused by:
  this version of Cargo is older than the `2024` edition, and only supports `2015`, `2018`, and `2021` editions.
Error: command exited with non-zero code `cargo test`: 101