build(deps): bump the all-deps group with 2 updates

[dependabot]

Bumps the all-deps group with 2 updates: once_cell and syn.

Updates once_cell from 1.20.3 to 1.21.0

Changelog

Sourced from once_cell's changelog.

1.21.0

• Outline initialization in race: #273.
• Add OnceNonZereUsize::get_unchecked: #274.
• Add OnceBox::clone and OnceBox::with_value: #275.

1.20.2

• Remove portable_atomic from Cargo.lock if it is not, in fact, used: #267 This is a work-around for this cargo bug: rust-lang/cargo#10801.

1.20.1

• Allow using race module using just portable_atomic, without critical_section and provide better error messages on targets without atomic CAS instruction, #265.

1.19.0

• Use portable-atomic instead of atomic-polyfill, #251.

1.18.0

• MSRV is updated to 1.60.0 to take advantage of dep: syntax for cargo features, removing "implementation details" from publicly visible surface.

1.17.2

• Avoid unnecessary synchronization in Lazy::{force,deref}_mut(), #231.

1.17.1

• Make OnceRef implementation compliant with strict provenance.

1.17.0

• Add race::OnceRef for storing a &'a T.

1.16.0

• Add no_std implementation based on critical-section, #195.
• Deprecate atomic-polyfill feature (use the new critical-section instead)

1.15.0

• Increase minimal supported Rust version to 1.56.0.
• Implement UnwindSafe even if the std feature is disabled.

1.14.0

... (truncated)

Commits

• 0d6bc31 fix tests
• f27d156 v1.21.0
• 5b7b16c Merge pull request #275 from klkvr/klkvr/once-box-helpers
• 73da483 Merge pull request #274 from briansmith/b/get_unchecked
• 15154b0 Add OnceNonZeroUsize::get_unchecked.
• f15c633 feat: add helpers for OnceBox
• See full diff in compare view

Updates syn from 2.0.99 to 2.0.100

Release notes

Sourced from syn's releases.

2.0.100

• Add Visit::visit_token_stream, VisitMut::visit_token_stream_mut, Fold::fold_token_stream for processing TokenStream during syntax tree traversals (#1852)

Commits

• 5357c8f Release 2.0.100
• 78a1efb Merge pull request #1852 from dtolnay/tokenstream
• 01a9e6d Visit TokenStream in generated syntax tree traversals
• 22bd069 Bypass instantiating Span-specific visit functions
• bf0a11d Generalize proc_macro2 path to other terminal types
• c38857a Simplify reference-to-references
• 90381ea Sort TERMINAL_TYPES alphabetically
• 6a860b0 Update test suite to nightly-2025-03-08
• aed58d1 Update test suite to nightly-2025-03-05
• See full diff in compare view

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