chore: bump the rust group across 1 directory with 3 updates

[dependabot]

Bumps the rust group with 3 updates in the / directory: thiserror, xxhash-rust and clap.

Updates thiserror from 2.0.20 to 2.0.21

Release notes

Sourced from thiserror's releases.

2.0.21

• Fix parsing of generic unit variants in display expressions (#459)

Commits

• b1827ee Release 2.0.21
• 58037b5 Merge pull request #459 from dtolnay/turbofish
• f82a0cf Keep track of nested turbofish depth
• 72ea492 Raise required compiler to Rust 1.77
• 72eea0d Resolve io_other_error clippy lint in tests
• 07f09a2 Raise required compiler to Rust 1.74
• 2715388 Update ui test suite to nightly-2026-09-22
• 5a306c7 Update ui test suite to nightly-2026-09-05
• ef9383b Update ui test suite to nightly-2026-08-22
• 8336b84 Update ui tests for version 2.0.20
• See full diff in compare view

Updates xxhash-rust from 0.8.18 to 0.8.19

Commits

• See full diff in compare view

Updates clap from 4.6.6 to 4.6.7

Release notes

Sourced from clap's releases.

v4.6.7

[4.6.7] - 2026-09-14

Features

• (derive) Add #[command(defer = <bool>)] attribute to opt-in to lazy initialisation of subcommands

Changelog

Sourced from clap's changelog.

[4.6.7] - 2026-09-14

Features

• (derive) Add #[command(defer = <bool>)] attribute to opt-in to lazy initialisation of subcommands

Commits

• d3e59a9 chore: Release
• d997f87 docs: Update changelog
• fb6058c Merge pull request #6409 from heaths/pwsh-support
• 2310870 test(complete): Add tests for completer_for_path
• 5967c17 refactor(complete): Move shell detection to Shells
• 594602b fix(complete): Detect pwsh for PowerShell
• 3a4f2d0 Merge pull request #6427 from clap-rs/renovate/shlex-2.x
• 67ebaed Merge pull request #6426 from clap-rs/renovate/actions-checkout-7.x
• c968b13 chore(deps): Update Rust crate shlex to v2
• 8f247cb chore(deps): Update actions/checkout action to v7
• Additional commits viewable in compare view

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