Merge pull request #433 from uchicago-cs/dependabot/pip/mypy-1.15.0

Bump mypy from 1.6.0 to 1.15.0

Author: borjasotomayor

requirements/local.txt

@@ -2,7 +2,7 @@
 
 # Testing
 # ------------------------------------------------------------------------------
-mypy==1.6.0  # https://github.com/python/mypy
+mypy==1.15.0  # https://github.com/python/mypy
 django-stubs==5.1.3  # https://github.com/typeddjango/django-stubs
 pytest==7.4.2  # https://github.com/pytest-dev/pytest