chore(deps): update snafu requirement from 0.8 to 0.9

[dependabot]

Updates the requirements on snafu to permit the latest version.

Changelog

Sourced from snafu's changelog.

0.9.2 - 2026-07-21

Fixed

• The whatever macro no longer triggers the semicolon_in_expressions_from_macros lint.

0.9.1 - 2026-05-29

Fixed

• Error types that use Self in fields or trait bounds are now supported.

[0.9.0] - 2026-03-02

Added

• WhateverLocal is an alternate to Whatever that does not implement or require Send or Sync.

• Errors that do not use context selectors (e.g. opaque errors, #[snafu(context(false))] errors, or #[snafu(transparent)] errors) may now be constructed using a generic value when they are annotated with the #[snafu(source(from(generic)))] attribute.

• When using the unstable-provider-api feature flag, Report will check if each error provides a Location. When it does, the Location will be appended to the error message.

Fixed

• Opaque errors which use const generics with default values are now supported.

Changed

• Rust 1.65 is now the minimum supported Rust version. This is a breaking change.

• Rust 1.81 is now the default supported Rust version. This is a breaking change.

• Whatever implements Send and Sync, allowing it to be sent between threads. This requires that wrapped errors also implement Send and Sync. This is a breaking change.

... (truncated)

Commits

• d6b22be Release 0.9.2
• fd520a8 Update the changelog
• db84e7e Merge pull request #560 from shepmaster/whatever-semicolon-expression
• 86c5365 Do not trigger the semicolon_in_expressions_from_macros lint
• 4fb4b5f Merge pull request #562 from shepmaster/v0-mangling
• 666dbed Update backtrace test for symbol mangling v0
• e9ef616 Merge pull request #561 from shepmaster/migrate-from-cirrus
• dac8b7a Migrate from CirrusCI to GitHub Actions
• ff50133 Release 0.9.1
• c425b0a Update the changelog
• Additional commits viewable in compare view

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