Bump mypy from 1.17.1 to 1.18.1 in /requirements/lintrunner (#192)

Author: dependabot[bot]

requirements/lintrunner/requirements.txt

@@ -3,7 +3,7 @@ lintrunner-adapters>=0.8.0
 # RUFF, RUFF-FIX
 ruff==0.12.12
 # MYPY
-mypy==1.17.1
+mypy==1.18.1
 types-PyYAML==6.0.12.20250822
 # EDITORCONFIG-CHECKER
 editorconfig-checker==3.4.0