Bump urllib3 from 2.5.0 to 2.6.0 in /requirements/mypy (#542)

Author: kurtmckee

requirements/mypy/requirements.txt

@@ -5,4 +5,4 @@ tomli==2.2.1 ; python_version == "3.10"
 types-chardet==5.0.4.6 ; python_version >= "3.10"
 types-requests==2.32.4.20250809 ; python_version >= "3.10"
 typing-extensions==4.15.0 ; python_version >= "3.10"
-urllib3==2.5.0 ; python_version >= "3.10"
+urllib3==2.6.0 ; python_version >= "3.10"