[BUG] configuration api returns unexpected type

[akshaya-a]

Expected Behavior

i expected config_response.items[key].json() to be a valid method based on the typing (dapr.clients.grpc._response.py::ConfigurationItem)

Actual Behavior

assert isinstance(client, DaprClient)
config_response = client.get_configuration(
CONFIGURATION_STORE, keys=[CONFIGURATION_KEY]
)

(Pdb) config_response.items[CONFIGURATION_KEY].json()
*** AttributeError: json
(Pdb) config_response.items[CONFIGURATION_KEY].value
'{"store":{"store_type":"none"},"events":{"events_ty...

(Pdb) type(config_response.items[CONFIGURATION_KEY])
<class 'dapr.proto.common.v1.common_pb2.ConfigurationItem'>

seems to be returning the autogenned typedefs

Steps to Reproduce the Problem

INFO[0000] Starting Dapr Runtime -- version 1.13.2 -- commit f09b193d8ac62bef6c0fd5452a00d2a49cd0d134 app_id=tests instance=ubuntudev scope=dapr.runtime type=log ver=1.13.2
(base) ak@ubuntudev:~/mindctrl$ pip show dapr
Name: dapr
Version: 1.13.0

Release Note

RELEASE NOTE: