chore: add version field to mocktail git dependency in Cargo.toml

[gaius-qi]

Description

This pull request updates the mocktail dependency configuration in Cargo.toml to include both a version and a git reference, along with a clarifying TODO comment. This ensures compatibility with the current codebase while documenting the intent to remove the git dependency in the future.

Dependency management:

• Updated the mocktail dependency to specify both a version (0.3.0) and a git reference, and added a TODO comment referencing the upstream issue for future cleanup.

Related Issue

Motivation and Context

Screenshots (if appropriate)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.89%. Comparing base (9d9b5ec) to head (5122888).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1733   +/-   ##
=======================================
  Coverage   46.89%   46.89%           
=======================================
  Files          87       87           
  Lines       24811    24811           
=======================================
  Hits        11636    11636           
  Misses      13175    13175           

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[mingcheng]

LGTM