build(deps): bump num-bigint from 0.4.8 to 0.5.1

[dependabot]

Bumps num-bigint from 0.4.8 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

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