lint: fix two small lints found by ruff

Author: gadomski

pystac/extensions/eo.py

@@ -545,7 +545,7 @@ def migrate(
                         obj["stac_extensions"] = []
                     if view.SCHEMA_URI not in obj["stac_extensions"]:
                         obj["stac_extensions"].append(view.SCHEMA_URI)
-                    if not "view:{}".format(field) in obj["properties"]:
+                    if "view:{}".format(field) not in obj["properties"]:
                         obj["properties"]["view:{}".format(field)] = obj["properties"][
                             "eo:{}".format(field)
                         ]

tests/utils/__init__.py

@@ -8,7 +8,7 @@
 import unittest
 from copy import deepcopy
 from datetime import datetime
-from typing import TYPE_CHECKING, Any, Dict, Type
+from typing import Any, Dict, Type
 
 from dateutil.parser import parse