Update rand_core requirement from 0.9 to 0.10

[dependabot]

Updates the requirements on rand_core to permit the latest version.

Release notes

Sourced from rand_core's releases.

v0.10.0

What's Changed

This release makes a number of significant changes which we hope will be the last significant breakage before 1.0. Code has moved from the [rust-random/rand] repository to its own [rust-random/rand_core].

User-facing API changes

Changed

• Edition changed to 2024 and MSRV bumped to 1.85 ([rand#1668])
• RngCore and TryRngCore are renamed to Rng and TryRng respectively (#54)
• Rng is now an extension trait of TryRng<Error = Infallible> (#45)
• TryRng::Error is bound on core::error::Error instead of Debug + Display (#58)
• Relax Sized bound on impls of SeedableRng ([rand#1641])

Added

• SeedableRng::{fork, try_fork} methods (#17)
• Re-export of core::convert::Infallible (#56)

Removed

• TryRng::read_adapter method (replaced with rand::RngReader) ([rand#1669])
• os_rng crate feature ([rand#1674])
• OsRng and OsError structs ([rand#1674])
• SeedableRng::from_os_rng and SeedableRng::try_from_os_rng methods ([rand#1674])
• getrandom dependency ([rand#1674])
• std crate feature ([rand#1674])
• Optional serde dependency (#28)
• UnwrapMut struct and Rng::unwrap_mut method (#45)
• Rng::unwrap_err method in favor of explicit wrapping in UnwrapErr (#53)

API changes to PRNG implementation helpers

Added

• BlockRng::reconstruct and BlockRng::remaining_results methods (#36)
• block::Generator::drop method (#35)
• BlockRng::word_offset method (#44)

Changed

• Replaced le helper functions with new utils helpers ([rand#1667], #34, #38, #45)
• Rename BlockRng::generate_and_set method to reset_and_skip (#44)
• Rename block::BlockRngCore trait to block::Generator (#26)
• Rename BlockRngCore::Results associated type to Output and remove type bounds on it (#26)

Removed

• Implementation of Rng for BlockRng, making the latter more generic (#34)
• BlockRng64 struct (#34)
• BlockRng::reset method (#44)
• BlockRng::index method (replaced with BlockRng::word_offset) (#44)
• Generator::Item associated type (#26)
• CryptoBlockRng (#69)

... (truncated)

Changelog

Sourced from rand_core's changelog.

[0.10.0] - 2026-02-01

This release makes a number of significant changes which we hope will be the last significant breakage before 1.0. Code has moved from the [rust-random/rand] repository to its own [rust-random/rand_core].

User-facing API changes

Changed

• Edition changed to 2024 and MSRV bumped to 1.85 ([rand#1668])
• RngCore and TryRngCore are renamed to Rng and TryRng respectively (#54)
• Rng is now an extension trait of TryRng<Error = Infallible> (#45)
• TryRng::Error is bound on core::error::Error instead of Debug + Display (#58)
• Relax Sized bound on impls of SeedableRng ([rand#1641])

Added

• SeedableRng::{fork, try_fork} methods (#17)
• Re-export of core::convert::Infallible (#56)

Removed

• TryRng::read_adapter method (replaced with rand::RngReader) ([rand#1669])
• os_rng crate feature ([rand#1674])
• OsRng and OsError structs ([rand#1674])
• SeedableRng::from_os_rng and SeedableRng::try_from_os_rng methods ([rand#1674])
• getrandom dependency ([rand#1674])
• std crate feature ([rand#1674])
• Optional serde dependency (#28)
• UnwrapMut struct and Rng::unwrap_mut method (#45)
• Rng::unwrap_err method in favor of explicit wrapping in UnwrapErr (#53)

API changes to PRNG implementation helpers

Added

• BlockRng::reconstruct and BlockRng::remaining_results methods (#36)
• block::Generator::drop method (#35)
• BlockRng::word_offset method (#44)

Changed

• Replaced le helper functions with new utils helpers ([rand#1667], #34, #38, #45)
• Rename BlockRng::generate_and_set method to reset_and_skip (#44)
• Rename block::BlockRngCore trait to block::Generator (#26)
• Rename BlockRngCore::Results associated type to Output and remove type bounds on it (#26)

Removed

• Implementation of Rng for BlockRng, making the latter more generic (#34)
• BlockRng64 struct (#34)
• BlockRng::reset method (#44)
• BlockRng::index method (replaced with BlockRng::word_offset) (#44)
• Generator::Item associated type (#26)
• CryptoBlockRng (#69)

... (truncated)

Commits

• 0ce22c9 Prepare 0.10.0 (#64)
• a20120c Remove CryptoGenerator and Generator::drop; add BlockRng::clear (#69)
• f9763d8 Add deprecated RngCore/TryRngCore forwarding traits (#70)
• ae88096 Update license year (#67)
• 5de0732 Tweak UnwrapErr impl (#66)
• 9eb6381 Tweak doc links (#65)
• 5864683 Remove outdated comment (#62)
• f5e3b45 Move SeedableRng and UnwrapErr into separate modules (#63)
• e591ff2 Release v0.10.0-rc-6 (#61)
• 423ca87 Enable lints in Cargo.toml (#60)
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[jschneider-bensch]

This needs a bit of work to deal with API changes, at least.
Also, I have not looked too closely, yet, but this would bump our MSRV for anything using rand_core to 1.85, whereas we previously stated it as 1.78 for the default feature sets (which needs to be revisited, as well, cf. #1286).