deps: bump the cargo group with 3 updates

[dependabot]

Bumps the cargo group with 3 updates: rand, x25519-dalek and num-bigint.

Updates rand from 0.10.1 to 0.10.2

Changelog

Sourced from rand's changelog.

[0.10.2] — 2026-07-02

Fixes

• Fix possible memory safety violation due to deserialization of UniformChar from bad source (#1790)

Changes

• Document required output order of fn partial_shuffle and apply #[must_use] (#1769)
• Avoid usage of unsafe in contexts where non-local memory corruption could invalidate contract (#1791)

#1769: rust-random/rand#1769 #1790: rust-random/rand#1790 #1791: rust-random/rand#1791

Commits

• 1540ea3 Prepare rand 0.10.2 (#1800)
• a29964a Bump chacha20 from 0.10.0 to 0.10.1 in the all-deps group (#1801)
• ced9491 Tweak docs for RngExt::random_range and SampleRange (#1798)
• db14664 Check UniformChar validity on deser (#1790)
• bea8620 Bump the all-deps group with 2 updates (#1796)
• 4f44932 Bump actions/cache from 5 to 6 (#1795)
• b999a13 Bump actions/checkout from 6 to 7 (#1794)
• aeab810 Avoid unsafe where safety depends on non-local values (#1791)
• 1896d7c Add typos CI job (#1789)
• 43eddee Bump the all-deps group with 2 updates (#1788)
• Additional commits viewable in compare view

Updates x25519-dalek from 2.0.1 to 3.0.0

Changelog

Sourced from x25519-dalek's changelog.

3.0.0

• Update the digest dependency to 0.9. This requires a major version because the digest traits are part of the public API, but there are otherwise no changes to the API.

2.1.0

• Make Scalar::from_bits a const fn, allowing its use in const contexts.

2.0.0

• Fix a data modeling error in the serde feature pointed out by Trevor Perrin which caused points and scalars to be serialized with length fields rather than as fixed-size 32-byte arrays. This is a breaking change, but it fixes compatibility with serde-json and ensures that the serde-bincode encoding matches the conventional encoding for X/Ed25519.
• Update rand_core to 0.5, allowing use with new rand versions.
• Switch from clear_on_drop to zeroize (by Tony Arcieri).
• Require subtle = ^2.2.1 and remove the note advising nightly Rust, which is no longer required as of that version of subtle. See the subtle changelog for more details.
• Update README.md for 2.x series.
• Remove the build.rs hack which loaded the entire crate into its own build.rs to generate constants, and keep the constants in the source code.

The only significant change is the data model change to the serde feature; besides the rand_core version bump, there are no other user-visible changes.

1.2.4

• Specify a semver bound for clear_on_drop rather than an exact version, addressing an issue where changes to inline assembly in rustc prevented clear_on_drop from working without an update.

1.2.3

• Fix an issue identified by a Quarkslab audit (and Jack Grigg), where manually constructing unreduced Scalar values, as needed for X/Ed25519, and then performing scalar/scalar arithmetic could compute incorrect results.
• Switch to upstream Rust intrinsics for the IFMA backend now that they exist in Rust and don't need to be defined locally.
• Ensure that the NAF computation works correctly, even for parameters never used elsewhere in the codebase.
• Minor refactoring to EdwardsPoint decompression.
• Fix broken links in documentation.
• Fix compilation on nightly broken due to changes to the #[doc(include)] path root (not quite correctly done in 1.2.2).

1.2.2

... (truncated)

Commits

• 6d96eb7 Bump version to 3.0.0.
• c68b30f Merge pull request #330 from isislovecruft/fix/move-coc
• 2ee6193 Merge pull request #327 from huitseeker/digests-0.9
• 91a0fae Move CoC section from CONTRIBUTING.md to new file.
• 5038fcf Merge pull request #308 from isislovecruft/fix/pippenger-typo
• 6afd8ff Update sha2, digest to 0.9
• 3cc13a7 Merge branch 'master' into develop
• c4824e1 Merge branch 'release/2.1.0'
• 3fc47ef Bump version to 2.1.0
• f04b830 Merge branch 'master' into develop
• Additional commits viewable in compare view

Updates num-bigint from 0.4.6 to 0.5.1

Changelog

Sourced from num-bigint's changelog.

Release 0.5.1 (2026-07-04)

• Fixed a regression in the B-Z division algorithm.

Contributors: @​cuviper

Release 0.5.0 (2026-07-02)

• Upgrade to rand v0.10 and/or v0.9, and split rand_core.
  • The former rand feature is now split into multiple features, rand_0_9, rand_core_0_9, rand_0_10, and rand_core_0_10, depending on the version and feature set you need.
  • The RandBigInt extension trait is now split into BigRng09 and BigRng010 for each version.
  • The gen_* methods are deprecated in favor of new random_* methods.
  • This is also a value-breaking release, as rand defines it.

Contributors: @​bionicles, @​cuviper, @​divergentdave

Release 0.4.8 (2026-07-04)

• Fixed a regression in the B-Z division algorithm.

Contributors: @​cuviper

Release 0.4.7 (2026-07-02)

• Inline single-digit values. This reduces heap allocations, and also enables const ONE, const NEG_ONE, and const fn new_const.
• Use divide and conquer in to_radix_digits, also implementing the Burnikel-Ziegler algorithm to speed up large divisions in general.
• Implement LowerBounded for BigUint.

Contributors: @​cp289, @​cuviper, @​hkalbasi, @​mikem8891, @​pRizz, @​tyilo, @​xtqqczze

Commits

• 33c59ba Merge pull request #348 from cuviper/bz-alg2-step3b
• 38b68f6 Release 0.5.1
• f4a43f5 Fix the missing part of the Burnikel-Ziegler algorithm
• ebfd89a Add failing tests for a bug in B-Z division
• 0ab95df Merge pull request #338 from cuviper/rand-0.10
• 33d6998 Release 0.5.0
• 84d05b7 Clean up manifests of ci crates
• f8daf56 Allow clippy::duplicate_mod where intended
• 022310a Rearrange the rand features to support both 0.9 and 0.10
• 537a036 ci: use the fallback resolver for deps
• Additional commits viewable in compare view

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