chore(deps): bump shakmaty from 0.23.1 to 0.27.3 in /backend

[dependabot]

Bumps shakmaty from 0.23.1 to 0.27.3.

Changelog

Sourced from shakmaty's changelog.

v0.27.3

• Implement serde::{Serialize,Deserialize} for Fen, Epd, San, SanPlus, and UciMove.
• Add Board::{is_empty,first,last}().
• Add Bitboard::insert().
• Implement IntoIterator for &Board.
• Add board::IntoIter::into_board().
• Implement {Index,IndexMut} for ByColor, ByRole, and ByCastlingSide.
• Implement Default for bitboard::IntoIter.
• Optimize Zobrist hashing.

v0.27.2

• Significantly optimize FEN writing. Add append_to_string(), append_ascii_to(), and write_ascii_to() for types Square, BoardFen, Fen, Epd, San, SanPlus, and UciMove.
• Add Setup::mirror() and into_mirrored(), add UciMove::to_mirrored(), add Move::to_mirrored().
• Rename {ByColor,ByCastlingSide}::into_flipped() to into_swapped() (with deprecated alias remaining).
• Make fields of PlayError public. Deprecate PlayError::into_inner().

v0.27.1

• Fix overly specific SAN disambiguation where rank would suffice.
• Fix no_std compatibility.
• Rename Uci to UciMove (with a deprecated alias remaining).

v0.27.0

• Improve Zobrist hashing.
  • Regroup internal tables for cache efficiency.
  • Optimize bit-widths less than the full Zobrist128.
  • Crazyhouse pockets with more than standard material no longer prone to collisions.
  • Change Crazyhouse and ThreeCheck hashes ❗
• Undocument CastlingSide discriminants. No longer considered stable.
• Add ByCastlingSide.
• Add Board::swap_colors().
• Add ByColor::swap().
• Provide integer conversions for Color.
• For types that have integer conversions, also support u128 and i128.

v0.26.0

• Change semantics of PartialEq for Chess ❗ (FIDE rules for repetitions instead of structural equality)
• Implement Hash, PartialEq, and Eq for all variant positions.

... (truncated)

Commits

• 7f4e37a prepare 0.27.3
• 3eef12f elide serde visitor lifetimes
• 4ab62d8 prepare changelog for next release
• f07dc05 serde feature no longer implies alloc
• 0c59af7 serialize San,SanPlus,UciMove without alloc
• b29fb0a support deserialize from borrowed strings
• 1da1236 make serde deps more precise
• 02c5038 fix deprecation warnings in tests
• 727a3dd Merge pull request #87 from tigerros/master
• 0449a1e serde for San, SanPlus, UciMove, Fen, Epd
• Additional commits viewable in compare view

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