Update typing-extensions requirement

Updates the requirements on [typing-extensions](https://github.com/python/typing) to permit the latest version.
- [Release notes](https://github.com/python/typing/releases)
- [Commits](https://github.com/python/typing/compare/3.7.4...3.10.0.2)

---
updated-dependencies:
- dependency-name: typing-extensions
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

setup.py

@@ -66,7 +66,7 @@ setup(
         "databases>=0.3.2,<0.5.1",
         "pydantic>=1.6.1,!=1.7,!=1.7.1,!=1.7.2,!=1.7.3,!=1.8,!=1.8.1,<=1.8.2",
         "sqlalchemy>=1.3.18,<=1.4.23",
-        "typing_extensions>=3.7,<=3.7.4.3",
+        "typing_extensions>=3.7,<3.10.0.3",
     ],
     extras_require={
         "postgresql": ["asyncpg", "psycopg2-binary"],