Update pydot requirement from <2,>=1.2.0 to >=1.2.0,<4 in /sdks/python

Updates the requirements on [pydot](https://github.com/pydot/pydot) to permit the latest version.
- [Changelog](https://github.com/pydot/pydot/blob/main/ChangeLog)
- [Commits](pydot/pydot@v1.2.0...v3.0.3)

---
updated-dependencies:
- dependency-name: pydot
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

sdks/python/setup.py

@@ -231,7 +231,7 @@ def get_portability_package_data():
         'pymongo>=3.8.0,<4.0.0',
         'protobuf>=3.12.2,<4',
         'proto-plus>=1.7.1,<2',
-        'pydot>=1.2.0,<2',
+        'pydot>=1.2.0,<4',
         'python-dateutil>=2.8.0,<3',
         'pytz>=2018.3',
         'regex>=2020.6.8',