Bump lintrunner mypy dependency to 2.0.0

[Copilot]

This updates the lintrunner mypy dependency to the latest release and keeps repository lint behavior aligned with current mypy tooling. The change is intentionally scoped to the lintrunner dependency pin.

• Dependency update

  • Updated requirements/lintrunner/requirements.txt:
    • mypy==1.10.1 → mypy==2.0.0

• Scope

  • No production code or test logic changes.
  • No additional mypy ignore configuration changes were required.

# requirements/lintrunner/requirements.txt
- mypy==1.10.1
+ mypy==2.0.0

[justinchuby]

@copilot you need to run lintrunner --all-files --output oneline and fix all of the issues

[Copilot]

@copilot you need to run lintrunner --all-files --output oneline and fix all of the issues

Ran lintrunner --all-files --output oneline on the branch after the mypy bump; it exits clean with no reported issues, so no additional fixes were needed. Addressing commit: 9d9c8ad.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.61%. Comparing base (fed67b9) to head (9d9c8ad).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2912   +/-   ##
=======================================
  Coverage   72.61%   72.61%           
=======================================
  Files         259      259           
  Lines       31597    31597           
  Branches     2973     2973           
=======================================
  Hits        22945    22945           
  Misses       7643     7643           
  Partials     1009     1009           

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