chore: Update human_tool_confirmation agent to use resumability feature

PiperOrigin-RevId: 816793131

Author: DeanChensj

contributing/samples/human_tool_confirmation/agent.py

@@ -13,6 +13,8 @@
 # limitations under the License.
 
 from google.adk import Agent
+from google.adk.apps import App
+from google.adk.apps import ResumabilityConfig
 from google.adk.tools.function_tool import FunctionTool
 from google.adk.tools.tool_confirmation import ToolConfirmation
 from google.adk.tools.tool_context import ToolContext
@@ -88,3 +90,12 @@ def request_time_off(days: int, tool_context: ToolContext):
     ],
     generate_content_config=types.GenerateContentConfig(temperature=0.1),
 )
+
+app = App(
+    name='human_tool_confirmation',
+    root_agent=root_agent,
+    # Set the resumability config to enable resumability.
+    resumability_config=ResumabilityConfig(
+        is_resumable=True,
+    ),
+)