Bump Python SDK version and saner version syntax

Author: dandavison

workers/python/pyproject.toml

@@ -3,10 +3,10 @@ name = "omes"
 version = "0.1.0"
 description = "Temporal load generator"
 authors = [{ name = "Temporal Technologies Inc", email = "[email protected]" }]
-requires-python = "~=3.9"
+requires-python = ">=3.9"
 license = "MIT"
 dependencies = [
-    "temporalio>=1.15.0,<2",
+    "temporalio>=1.16.0,<2",
     "prometheus-client>=0.16.0,<0.17",
     "python-json-logger>=2.0.7,<3",
 ]