fix(deps): update rust crate syn to v2.0.79

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
syn	dependencies	patch	2.0.63 -> 2.0.79

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Release Notes

dtolnay/syn (syn)

v2.0.79

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• Fix infinite loop on parsing chained ranges (#​1741)
• Fix panic in parsing use items containing absolute paths (#​1742)

v2.0.78

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• Fix infinite loop on chained comparison (#​1739)

v2.0.77

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• Support parsing Expr::Tuple in non-"full" mode (#​1727)

v2.0.76

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• Enforce that tail call become keyword is followed by an expression (#​1725)

v2.0.75

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• Automatically fill in missing turbofish when printing ExprPath and other paths in expression position (#​1722)

v2.0.74

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• Fix "temporary is dropped and runs the destructor for type `impl Iterator`" regression affecting certain use of Generics iterator methods (#​1719)

v2.0.73

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• Support parsing unnamed C varargs within function pointer types (#​1711)
• Improve synthesized error message on unexpected tokens at the end of the expected contents of a delimited group (#​1713)
• Support parsing unstable tail call syntax (#​1714, https://github.com/rust-lang/rust/issues/112788)
• Add Fields::members iterator (#​1716, thanks @​Fancyflame)

v2.0.72

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• Parse use<'a, T> precise capturing bounds (#​1707, thanks @​compiler-errors)

v2.0.71

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• Do not require mutable borrow in Punctuated::get() (#​1706, thanks @​lemunozm)

v2.0.70

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• Improve parenthesization of closures, jumps, ranges, chained comparisons, and let (#​1694, #​1695, #​1698, #​1699, #​1700)

v2.0.69

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• Correctly parenthesize labeled loops inside a break value (#​1692)
• Add Punctuated::get and get_mut (#​1693)

v2.0.68

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• Improve panic location when parse_quote! parses invalid syntax (#​1690, thanks @​stepancheg)
• More efficient peek implementation for Group and Lifetime (#​1687)

v2.0.67

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• Produce more accurate error message locations for errors located at the end of a nested group (#​1679, #​1680)
• Support peeking LitCStr in ParseStream::peek (#​1682)

v2.0.66

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• Allow braced structs when parsing ExprLet (#​1671)

v2.0.65

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• Optimize the implementation of Fold to compile faster (#​1666, #​1667, #​1668)

v2.0.64

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• Support using ParseBuffer across catch_unwind (#​1646)
• Validate that the expression in a let-else ends in brace as required by rustc (#​1648, #​1649)
• Legalize invalid const generic arguments by wrapping in braces (#​1654, #​1655)
• Fix some expression precedence edge cases involving break and return in loop headers (#​1656)
• Always print closure bodies with a brace when the closure has an explicit return type (#​1658)
• Automatically insert necessary parentheses in ToTokens for Expr when required by expression precedence (#​1659)
• Support struct literal syntax in match guard expressions (#​1662)

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