Bump syn from 1.0.109 to 2.0.46

[dependabot[bot]]

Bumps syn from 1.0.109 to 2.0.46.

Release notes

Sourced from syn's releases.

2.0.46

• Update proc-macro2 to fix caching issue when using a rustc-wrapper such as sccache

2.0.45

• Parse unsupported expressions in enum discriminants of DeriveInput as Expr::Verbatim in non-"full" mode, instead of error (#1513)
• Support parsing PatType with parse_quote! (#1573)

2.0.44

• Documentation improvements

2.0.43

• Insert trailing comma if not already present when printing a 1-tuple in pattern position (#1553)

2.0.42

• Documentation improvements

2.0.41

• Support parsing syn::Field in parse_quote! (#1548)

2.0.40

• Fix some edge cases of handling None-delimited groups in expression parser (#1539, #1541, #1542, #1543, #1544, #1545)

2.0.39

• Fix parsing of return expression in match guards (#1528)
• Improve error message on labeled loop as value expression for break (#1531)

2.0.38

• Fix "method 'peek' has an incompatible type for trait" error when defining bool as a custom keyword (#1518, thanks @​Vanille-N)

2.0.37

• Work around incorrect future compatibility warning in rustc 1.74.0-nightly

2.0.36

• Restore compatibility with --generate-link-to-definition documentation builds (#1514)

2.0.35

• Make rust-analyzer produce preferred brackets for invocations of Token! macro (#1510, #1512)

2.0.34

• Documentation improvements

2.0.33

• Special handling for the (/*ERROR*/) placeholder that rustc uses for macros that fail to expand

2.0.32

• Add Path::require_ident accessor (#1496, thanks @​Fancyflame)

2.0.31

• Parse generics and where-clause on const items (rust-lang/rust#113521)

... (truncated)

Commits

• 1650c86 Release 2.0.46
• 65c7710 Pull in proc-macro2 sccache fix
• 61dee89 Merge pull request #1574 from dtolnay/precedence
• 36182d4 Move expression Precedence enum to own module
• 6bfa278 Release 2.0.45
• 3ba270b Merge pull request #1573 from dtolnay/pattype
• 969b207 Impl Parse for PatType
• a0fcd83 Merge pull request #1572 from dtolnay/discriminant
• 29a7d7b Add a fallback for parsing DeriveInput discriminants to Verbatim in non-full ...
• 82f1eb7 Ignore diverging_sub_expression clippy lint
• Additional commits viewable in compare view

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[asmello]

@chanced we need to tweak dependabot to ignore this section of the manifest, as we really do want to use the oldest version that works.

[asmello]

@dependabot ignore this dependency

[dependabot[bot]]

OK, I won't notify you about syn again, unless you re-open this PR.