Update Rust crate syn to v2.0.86

[oxide-renovate]

This PR contains the following updates:

Package	Type	Update	Change
syn	workspace.dependencies	patch	2.0.77 -> 2.0.86

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Release Notes

dtolnay/syn (syn)

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)

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This PR has been generated by Renovate Bot.

[oxide-renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
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The artifact failure details are included below:

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path Cargo.toml --workspace
error: failed to load manifest for workspace member `/tmp/renovate/repos/github/oxidecomputer/opte/bench`
referenced by workspace at `/tmp/renovate/repos/github/oxidecomputer/opte/Cargo.toml`

Caused by:
  failed to load manifest for dependency `opte-test-utils`

Caused by:
  failed to load manifest for dependency `oxide-vpc`

Caused by:
  failed to parse manifest at `/tmp/renovate/repos/github/oxidecomputer/opte/lib/oxide-vpc/Cargo.toml`

Caused by:
  error inheriting `uuid` from workspace root manifest's `workspace.dependencies.uuid`

Caused by:
  `dependency.uuid` was not found in `workspace.dependencies`