fix(deps): update rust crate syn to v2.0.90 - autoclosed

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
syn	dependencies	patch	2.0.85 -> 2.0.90

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Release Notes

dtolnay/syn (syn)

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)

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