chore: Bump bigdecimal from 0.4.5 to 0.4.6

[dependabot[bot]]

Bumps bigdecimal from 0.4.5 to 0.4.6.

Release notes

Sourced from bigdecimal's releases.

v0.4.6

Changes

• Fix error in formatting code that would skip "carrying the one" when rounding up series of nines, overflowing

• Improved implementation of sqrt and cbrt

• Uses consistent rounding implementations in formatting and arithmetic operations

• Add new constructor methods BigDecimal::from_bigint & BigDecimal::from_biguint

Commits

• 148b4cf v0.4.6
• 2f2a072 Version 0.4.6
• e3ffe6a Fix clippy lints
• 1e96272 Merge reimplementation of cbrt into trunk
• ea53472 Reimplement impl_cbrt_int_scale
• bcf065a Add method BigDecimalRef::count_trailing_zeroes
• e94bdaf Add struct WithScale
• 8886fc0 Add arithmetic function multiply_by_ten_to_the_uint
• 3c58a3e Fix compatibility with Rust 1.43
• f68a86f Merge fix to formatting bug into trunk
• Additional commits viewable in compare view

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