chore[test]: fix a type hint

[ZhipengXue97]

Description

Fix a type check warning reported by Pyre@Google, which was outdated after code modifications.

Detail

update the return type of function fix_terminal from bool to str, since it could be str after commit 176e7f7

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.32%. Comparing base (5067b86) to head (5f470cb).
Report is 57 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4173      +/-   ##
==========================================
- Coverage   91.34%   88.32%   -3.03%     
==========================================
  Files         109      106       -3     
  Lines       15606    15247     -359     
  Branches     3432     3367      -65     
==========================================
- Hits        14256    13467     -789     
- Misses        920     1265     +345     
- Partials      430      515      +85     

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[charles-cooper]

interesting, thanks! @ZhipengXue97 are you performing large scale type hint fixes? https://github.com/ZhipengXue97?tab=overview&from=2024-07-01&to=2024-07-30

[ZhipengXue97]

@charles-cooper We are trying to develop a tool to update the type hints based on the code modification such as commit, to avoid false positive warnings from type checker, this PR is fixed by our tool based on the previous commit.