Bump anyhow from 1.0.75 to 1.0.81

[dependabot[bot]]

Bumps anyhow from 1.0.75 to 1.0.81.

Release notes

Sourced from anyhow's releases.

1.0.81

• Make backtrace support available when using -Dwarnings (#354)

1.0.80

• Fix unused_imports warnings when compiled by rustc 1.78

1.0.79

• Work around improperly cached build script result by sccache (#340)

1.0.78

• Reduce spurious rebuilds under RustRover IDE when using a nightly toolchain (#337)

1.0.77

• Make anyhow::Error::backtrace available on stable Rust compilers 1.65+ (#293, thanks @​LukasKalbertodt)

1.0.76

• Opt in to unsafe_op_in_unsafe_fn lint (#329)

Commits

• 4aad4ed Release 1.0.81
• 8be9091 Merge pull request #354 from dtolnay/deadcode
• a2eb7dd Make compatible with -Dwarnings
• 5443719 Release 1.0.80
• dfc7bc0 Work around prelude redundant import warnings
• 6e4f86b Import from alloc not std, where possible
• f885a13 Ignore incompatible_msrv clippy false positives in test
• fefbcbc Ignore incompatible_msrv clippy lint
• 78f2d81 Update ui test suite to nightly-2024-02-08
• edd88d3 Update ui test suite to nightly-2024-01-31
• Additional commits viewable in compare view

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[dependabot[bot]]

Superseded by #137.