cargo: bump the cargo-dependencies group with 2 updates

[dependabot]

Bumps the cargo-dependencies group with 2 updates: proc-macro2 and syn.

Updates proc-macro2 from 1.0.89 to 1.0.91

Release notes

Sourced from proc-macro2's releases.

1.0.91

• Fix panic "compiler/fallback mismatch 949" when using TokenStream::from_str from inside a proc macro to parse a string containing doc comment (#484)

1.0.90

• Improve error recovery in TokenStream's and Literal's FromStr implementations to work around rust-lang/rust#58736 such that rustc does not poison compilation on codepaths that should be recoverable errors (#477, #478, #479, #480, #481, #482)

Commits

• 5046761 Release 1.0.91
• 27c5494 Merge pull request #486 from dtolnay/compilerlex
• a9146d6 Ensure that compiler tokenstream parsing only produces a compiler lexerror
• 1ce5f04 Merge pull request #485 from dtolnay/fallbackident
• 75d0818 Make parser's fallback Ident symmetric with Group and Literal
• 56c3e31 Merge pull request #484 from dtolnay/fbliteral
• d2c0e61 Fix spanned fallback literal construction
• ec55645 Release 1.0.90
• 87a180c Merge pull request #482 from dtolnay/validate
• da66636 Perform up-front validation using the fallback parser
• Additional commits viewable in compare view

Updates syn from 2.0.87 to 2.0.89

Release notes

Sourced from syn's releases.

2.0.89

• Fix "compiler/fallback mismatch 949" panic (dtolnay/proc-macro2#483)

2.0.88

• Improve error recovery in parse_str (#1783)

Commits

• 06af36b Release 2.0.89
• 42b4747 Fix "compiler/fallback mismatch 949" panic
• 424e484 Release 2.0.88
• 2375d9a Pull in proc-macro2 FromStr's more robust error recovery
• f46a6f3 Update test suite to nightly-2024-11-18
• fc133eb Resolve unnecessary_map_or clippy lint
• 0ccac34 Resolve question_mark clippy lint
• 5c1c057 Disable toml "display" feature
• 5bbe46a Prevent upload-artifact step from causing CI failure
• 2b45e93 Raise minimum version for syn-codegen crate to Rust 1.65
• See full diff in compare view

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