chore: 🤖Auto-update A2A types from a2aproject/A2A@38c1fa5

Author: a2a-bot

src/a2a/types.py

@@ -1060,7 +1060,7 @@ class SetTaskPushNotificationConfigSuccessResponse(BaseModel):
 
 class Artifact(BaseModel):
     """
-    Represents an artifact generated for a task task.
+    Represents an artifact generated for a task.
     """
 
     artifactId: str