chore(deps): update rust crate pretty_assertions to 1.4.1

[renovate]

This PR contains the following updates:

Package	Type	Update	New value	References	Sourcegraph
pretty_assertions	dev-dependencies	patch	1.4.1	source

Test plan: CI should pass with updated dependencies. No review required: this is an automated dependency update PR.

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Configuration

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♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: bindings/rust/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path bindings/rust/Cargo.toml --package [email protected] --precise 1.4.1
error: failed to acquire package cache lock

Caused by:
  failed to open: /home/ubuntu/.cargo/.package-cache

Caused by:
  failed to create directory `/home/ubuntu/.cargo`

Caused by:
  File exists (os error 17)