Bump mypy target python version

Armavica · twiecki · commit bd744740d23e · 2024-04-05T21:40:45.000+08:00
diff --git a/mypy.ini b/mypy.ini
@@ -1,5 +1,5 @@
 [mypy]
-python_version = 3.9
+python_version = 3.10
 no_implicit_optional = False
 strict_optional = True
 warn_redundant_casts = False
