fix(deps): Update A2A SDK to 0.3.0

PiperOrigin-RevId: 789758797

Author: holtskinner

pyproject.toml

@@ -81,7 +81,7 @@ dev = [
 
 a2a = [
   # go/keep-sorted start
-  "a2a-sdk>=0.2.16,<0.3.0;python_version>='3.10'",
+  "a2a-sdk>=0.3.0,<1.0.0;python_version>='3.10'",
   # go/keep-sorted end
 ]
 

src/google/adk/a2a/logs/log_utils.py

@@ -136,11 +136,11 @@ def build_a2a_request_log(req: SendMessageRequest) -> str:
   config_log = "None"
   if req.params.configuration:
     config_data = {
-        "acceptedOutputModes": req.params.configuration.acceptedOutputModes,
+        "acceptedOutputModes": req.params.configuration.accepted_output_modes,
         "blocking": req.params.configuration.blocking,
-        "historyLength": req.params.configuration.historyLength,
+        "historyLength": req.params.configuration.history_length,
         "pushNotificationConfig": bool(
-            req.params.configuration.pushNotificationConfig
+            req.params.configuration.push_notification_config
         ),
     }
     config_log = json.dumps(config_data, indent=2)

src/google/adk/agents/remote_a2a_agent.py

@@ -26,7 +26,7 @@
 
 try:
   from a2a.client import A2AClient
-  from a2a.client.client import A2ACardResolver
+  from a2a.client import A2ACardResolver
   from a2a.types import AgentCard
   from a2a.types import Message as A2AMessage
   from a2a.types import MessageSendParams as A2AMessageSendParams