Bump async-trait from 0.1.64 to 0.1.68

[dependabot[bot]]

Bumps async-trait from 0.1.64 to 0.1.68.

Release notes

Sourced from async-trait's releases.

0.1.68

• Improve error message if an async fn is written without a function body in an impl block

0.1.67

• Update syn dependency to 2.x

0.1.66

• Set html_root_url attribute

0.1.65

• Fix interaction with rustc's single_use_lifetimes lint (#238, #239)

Commits

• dce6060 Release 0.1.68
• 346f050 Merge pull request #244 from dtolnay/verbatimfn
• 344a4f2 Handle async impl fn without body
• f8a8650 Release 0.1.67
• d7a9cae Merge pull request #241 from dtolnay/syn
• 15fd282 Ignore match_like_matches_macro clippy lint
• 032c150 Update to syn 2
• 0d0a346 Update ui test suite to nightly-2023-03-17
• 9a9b322 Release 0.1.66
• 4cd54b8 Set html_root_url
• Additional commits viewable in compare view

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[jpculp]

@dependabot close. Addressed in #257.