fix(deps): update rust crate syn to v2.0.99

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
syn	dependencies	patch	2.0.72 -> 2.0.99

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Release Notes

dtolnay/syn (syn)

v2.0.99

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• Documentation improvements

v2.0.98

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• Allow lifetimes in function pointer return values in ParseStream::call and Punctuated parsers (#​1847)

v2.0.97

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• Documentation improvements

v2.0.96

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• Expression precedence fixes (#​1834, #​1836, #​1837, #​1838, #​1839, #​1840)

v2.0.95

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• Fix parenthesization of struct literals in let-chains (#​1832)

v2.0.94

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• Expression precedence fixes (#​1811, #​1812, #​1813, #​1814, #​1815, #​1816, #​1818, #​1819, #​1820, #​1825, #​1826, #​1827, #​1828, #​1829, #​1830)

v2.0.93

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• Fix expression parsing edge cases: x as T <<= y (#​1804), break as T (#​1805), match x { _ if .. => {} } (#​1807)
• Fix expression printing edge cases: || -> T 'a: {} (#​1806), if break x {} (#​1808, #​1810)

v2.0.92

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• Fix parenthesization of jumps inside ranges (#​1798)

v2.0.91

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• Support parsing Vec<Arm> using parse_quote! (#​1796, #​1797)

v2.0.90

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• Fix automatic parenthesization of subexpressions containing outer attributes, such as (#[attr] thing).field (#​1785)
• Fix automatic parenthesization of function calls via a struct field, such as (thing.field)() and thing.0() (#​1786)

v2.0.89

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• Fix "compiler/fallback mismatch 949" panic (https://github.com/dtolnay/proc-macro2/issues/483)

v2.0.88

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• Improve error recovery in parse_str (#​1783)

v2.0.87

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• Add Cursor::any_group (#​1777)
• Add Expr::peek (#​1778)
• Improve syntax support for enum discriminant expressions in non-"full" mode (#​1779)

v2.0.86

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• Support peeking the end of a parse stream (#​1689)
• Allow parse_quote! to produce Vec<Attribute> (#​1775)

v2.0.85

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• Preserve extern static unsafety in ForeignItem::Verbatim (#​1773)

v2.0.84

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• Parse safe and explicitly unsafe extern items (#​1768, https://github.com/rust-lang/rust/issues/123743, https://github.com/rust-lang/rfcs/pull/3484)
• Parse self captures: impl Sized + use<Self> (#​1772)

v2.0.83

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• Documentation improvements

v2.0.82

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• Provide Parse impls for PreciseCapture and CapturedParam (#​1757, #​1758)
• Support parsing unsafe attributes (#​1759)
• Add Fold and VisitMut methods for Vec<Attribute> (#​1762)

v2.0.81

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• Add TypeParamBound::PreciseCapture to represent precise capture syntax impl Trait + use<'a, T> (#​1752, #​1753, #​1754)

v2.0.80

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• Add Expr::RawAddr (#​1743)
• Reject precise captures and ~const in inappropriate syntax positions (#​1747)
• Reject trait bound containing only precise capture (#​1748)

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)

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