build(deps): bump rand from 0.10.2 to 0.10.3

[dependabot]

Bumps rand from 0.10.2 to 0.10.3.

Changelog

Sourced from rand's changelog.

[0.10.3] — 2026-09-20

Fixes

• Fix WeightedIndex panic when the sum of float weights is infinite; return Error::Overflow instead (#1808)
• Fix spurious Error::NonFinite from Uniform::new_inclusive on large finite float ranges such as 0.0..=f64::MAX (#1821)
• Fix possible panic due to sampling a deserialized Uniform<char> (#1831)

Changes

• Report exact remaining lengths from WeightedIndex::weights() and reduce overhead when reading weights (#1838)

#1808: rust-random/rand#1808 #1821: rust-random/rand#1821 #1831: rust-random/rand#1831 #1838: rust-random/rand#1838

Commits

• 9e7d328 Prepare rand 0.10.3 (#1840)
• f73ce74 Optimize WeightedIndex weight lookup and iteration (#1838)
• ef9e044 Avoid panic from deserialized Uniform\<char> where range == 0 (#1831)
• c994eb1 docs: fix angle unit in quick start example (#1839)
• 33dea4f Test that WeightedIndex rejects INFINITY with Error::Overflow (#1822)
• 94c9078 Fix Uniform::new_inclusive overflow on large finite float ranges (#1821)
• bb1262f Use Xoshiro256PlusPlus in examples/rayon-monte-carlo.rs (#1805)
• 521fab6 Stop pinning dependencies (#1820)
• 3f7c433 Stop pinning dependencies
• cf4f73e sample_efraimidis_spirakis: error on more than amount non-finite weights (#1814)
• Additional commits viewable in compare view

[bee-san]

@dependabot rebase

[bee-san]

Lockfile-only bump. CI is green on Linux x64/arm64, macOS and Windows, and the three Dependabot bumps combine cleanly with current master (checked with cargo clippy --locked --all-targets -D warnings).