Fix missing token property

Author: vdusek

src/apify_client/_apify_client.py

@@ -136,6 +136,11 @@ def _base_kwargs(self) -> dict:
             'client_registry': self._client_registry,
         }
 
+    @property
+    def token(self) -> str | None:
+        """The Apify API token used by the client."""
+        return self._config.token
+
     def actor(self, actor_id: str) -> ActorClient:
         """Retrieve the sub-client for manipulating a single Actor.
 
@@ -350,6 +355,11 @@ def _base_kwargs(self) -> dict:
             'client_registry': self._client_registry,
         }
 
+    @property
+    def token(self) -> str | None:
+        """The Apify API token used by the client."""
+        return self._config.token
+
     def actor(self, actor_id: str) -> ActorClientAsync:
         """Retrieve the sub-client for manipulating a single Actor.