Update shakmaty requirement from 0.24 to 0.26

[dependabot]

Updates the requirements on shakmaty to permit the latest version.

Changelog

Sourced from shakmaty's changelog.

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.
• Replace build.rs with const evaluation. Bump MSRV to 1.70.

v0.25.0

• Remove step feature.
• Fix inconsistent Hash for Chess due to irrelevant en passant squares.
• Relax and more precisely document CastlingMode::Chess960.
• Rename PositionErrorKinds::IMPOSSIBLE_MATERIAL to TOO_MUCH_MATERIAL.
• Implement BitXorAssign for Color.
• Added Bitboard::{isolate_first,isolate_last,discard_last,without_last}().

v0.24.0

• Update PositionErrorKinds to bitflags 2.
• Remove previously deprecated methods.
• Bump minimum supported Rust version to 1.63.

v0.23.1

• Significantly optimize performance of Zobrist hashing.
• Add Variant::from_ascii().
• Implement Default for VariantPosition.
• Use #[track_caller] for panicking functions.

v0.23.0

• Add optional nohash-hasher feature.
• Implement Display and FromStr for Variant.
• Variant::from_uci() now returns Result instead of Option.
• Make Variant::distinguishes_promoted() const.
• Introduce Zobrist{8,16,32,64,128} types for Zobrist hash values.
• Consider EnPassantMode for Zobrist hashing.
• Removed API for incremental Zobrist hashing which was never implemented.

v0.22.0

• Let Board::board_fen() return struct that implements Display instead of String.
• Introduce alloc and std features, which can be disabled for #![no_std] support.
• Make many methods const.

v0.21.4

• Add Board::from_bitboards() and Board::into_bitboards().

... (truncated)

Commits

• b64820b bump 0.26.0
• 3f89911 prepare changelog for v0.26.0
• 2f40f6d fix hyperlink
• 9e0444f reference https://chasolver.org/
• 3cd0bb8 add another antichess insufficient material test
• 986bc78 fix clippy warning regarding operator precedence
• d6a45b7 copy magics instead of referencing them
• c1ad1fe replace build.rs with const bootstrap
• ef85e2b use iai workaround (bheisler/iai#35)
• 4f346a2 link setup in equality docs
• Additional commits viewable in compare view

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[kraktus]

@dependabot rebase

[dependabot]

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