UiPathResumableStorageProtocol should allow storing arbitrary (namespace, key, value) tuples

[cristipufu]

+ async def set_value(self, runtime_id: str, namespace: str, key: str, value: Any)

+ async def get_value(self, runtime_id: str, namespace: str, key: str) -> Any

[GabrielVasilescu04]

Covered by this PR: #55