Update typings for mypy 1.6 (#381)

Author: blink1073

nbformat/json_compat.py

@@ -7,7 +7,7 @@
 
 import os
 
-import fastjsonschema  # type:ignore[import]
+import fastjsonschema  # type:ignore[import-untyped]
 import jsonschema
 from fastjsonschema import JsonSchemaException as _JsonSchemaException
 from jsonschema import Draft4Validator as _JsonSchemaValidator

nbformat/sign.py

@@ -30,7 +30,7 @@ def convert_datetime(val):
     sqlite3.register_converter("datetime", convert_datetime)
 except ImportError:
     try:
-        from pysqlite2 import dbapi2 as sqlite3  # type:ignore[no-redef, import]
+        from pysqlite2 import dbapi2 as sqlite3  # type:ignore[no-redef, import-not-found]
     except ImportError:
         sqlite3 = None  # type:ignore[assignment]
 

pyproject.toml

@@ -85,7 +85,7 @@ nowarn = "test -W default {args}"
 
 [tool.hatch.envs.typing]
 features = ["test"]
-dependencies = ["mypy>=1.5.1"]
+dependencies = ["mypy~=1.6", "jupyter_core>=5.4", "traitlets>=5.11.1"]
 [tool.hatch.envs.typing.scripts]
 test = "mypy --install-types --non-interactive {args}"