Update dill requirement in /sdks/python

Updates the requirements on [dill](https://github.com/uqfoundation/dill) to permit the latest version.
- [Release notes](https://github.com/uqfoundation/dill/releases)
- [Commits](uqfoundation/dill@dill-0.3.1.1...dill-0.3.5.1)

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

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

sdks/python/setup.py

@@ -216,7 +216,7 @@ def get_portability_package_data():
         # using older version of dill. It is best to use the same version of
         # dill on client and server, therefore list of allowed versions is very
         # narrow. See: https://github.com/uqfoundation/dill/issues/341.
-        'dill>=0.3.1.1,<0.3.2',
+        'dill>=0.3.1.1,<0.3.6',
         # It is prudent to use the same version of pickler at job submission
         # and at runtime, therefore bounds need to be tight.
         # To avoid depending on an old dependency, update the minor version on