Bump the rust-dependencies group with 2 updates

[dependabot[bot]]

Updates the requirements on async-trait and serde to permit the latest version. Updates async-trait to 0.1.72

Release notes

Sourced from async-trait's releases.

0.1.72

• Documentation improvements

Commits

• a01e5d4 Release 0.1.72
• a38d35a Opt in to generate-link-to-definition when building on docs.rs
• 036a373 Update ui tests with 2021-edition diagnostics
• 059aafd Update to 2021 edition
• See full diff in compare view

Updates serde to 1.0.175

Release notes

Sourced from serde's releases.

v1.0.175

• Restore missing LICENSE files in serde_derive crate (#2527, thanks @​ankane)

Commits

• 6140b6f Release 1.0.175
• 4cabc9f Merge pull request #2527 from ankane/license-files
• aa7c634 Include license files in serde_derive crate
• 27414c9 Merge pull request #2522 from serde-rs/leak
• 50e2f4b Leak all memory allocated during macro expansion
• 22be673 Release 1.0.174
• 166c89f Opt in to generate-link-to-definition when building on docs.rs
• 6e0b13e Release 1.0.173
• 7e8f978 Handle $crate special case
• 6c0e838 Always consider empty output to be unsuccessful
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually