Update Rust crate mockall to v0.13.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
mockall	dev-dependencies	patch	0.13.0 -> 0.13.1

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Release Notes

asomers/mockall (mockall)

v0.13.1

Compare Source

Fixed

• Suppress warnings about the #[expect] lint, new in Rust 1.81.0, in
  generated code.
  (#​619)

• Suppress the #[clippy::ref_option] warning, new in Rust 1.83.0, in
  generated code.
  (#​618)

• When mocking functions with a closure argument, but not using
  #[concretize], include any additional trait bounds in the trait object
  argument passed to .with and .returning.
  (#​606)

• Fixed naming conflict when mocking multiple traits with same name but from
  different modules.
  (#​601)

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