A0-3951: Bump async-trait from 0.1.80 to 0.1.81 in the all-rust-deps group

[dependabot[bot]]

Bumps the all-rust-deps group with 1 update: async-trait.

Updates async-trait from 0.1.80 to 0.1.81

Release notes

Sourced from async-trait's releases.

0.1.81

• Turn off unneeded features of syn dependency (#272, thanks @​klensy)

Commits

• 383f65f Release 0.1.81
• 4ec740e Merge pull request #273 from dtolnay/cloneimpls
• b6c6063 Ignore trivially_copy_pass_by_ref pedantic clippy lint
• 315fd90 Turn off syn/clone-impls feature
• 94a3165 Merge pull request #272 from klensy/syn-f
• 2fac940 syn: remove derive feature
• 4a00d73 Work around dead code warning in test
• dba15b5 Merge pull request #270 from dtolnay/objsafety
• d28c95b Former where_clauses_object_safety lint is now hard error
• 78a5922 Fill in ignore reasons in all #[ignore] attributes
• Additional commits viewable in compare view

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[github-actions[bot]]

Please make sure the following happened

• [ ] Appropriate tests created
• [ ] Infrastructure updated accordingly
• [ ] Updated existing documentation
• [ ] New documentation created
• [ ] Version bumped if breaking changes

[dependabot[bot]]

Looks like async-trait is updatable in another way, so this is no longer needed.