chore(deps): update rust crate bigdecimal to v0.4.5

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
bigdecimal	workspace.dependencies	patch	0.4.2 -> 0.4.5

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Release Notes

akubera/bigdecimal-rs (bigdecimal)

v0.4.5

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v0.4.4

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Changes

• Revert formatting semantics to match Rust's meanings rather than Python's
  • The meaning of the formatting string "{:.4}" has returned to "4 digits after decimal place" rather than "four digits of precision"
• Add new compile-time parameters for safer formatting
  • Configurable thresholds prevent printing out full decimal form of large numbers, like 1e99999 (could be used in)
• Improved JSON serialization / formatting routines

[!NOTE]
Please add your own tests to ensure this library formats (and continues to format) numbers as you expect

• Added methods

  • BigDecimalRef::clone_into
  • BigDecimal::set_scale (mutable version of take_and_scale)

• Optimized bigdecimal comparison algorithms

• Restricted versions of num-* crates to respect Minimum Supported Rust Version (1.43)

  • I may raise this up soon

v0.4.3

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• Use exponential formatting (scientific-notation) if number of leading zeros is greater than 5
  • so 1234e-304 is formatted as 1.234e-301 rather than 0.00.....{300-zeros)....00123
  • Fixes "out of memory errors" when massive amounts of zeros would have been printed
• Add methods for printing using scientific-notation & engineering-notation
• Add derived Clone trait to ParseBigDecimalError
• Preserve scale when adding zero
  • Mimics Python's Decimal behavior:

    >>> Decimal("1.2") + Decimal("0.00000")
    Decimal('1.20000')

• Minor optimizations removing unnecessary clones in addition and multiplication

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[cakebaker]

The issues are related to akubera/bigdecimal-rs#128 and the restriction of the versions of the num-* dependencies in akubera/bigdecimal-rs@d277952