adding default mapping

Author: joe-ayoub-segment

packages/destination-actions/src/destinations/google-enhanced-conversions/uploadClickConversion/index.ts

@@ -68,7 +68,10 @@ const action: ActionDefinition<Settings, Payload> = {
       label: 'Session Attributes (Encoded)',
       description:
         "A base64url-encoded JSON string containing session attributes collected from the user's browser. This provides additional attribution context if gclid, gbraid, or user identifiers are missing.",
-      type: 'string'
+      type: 'string',
+      default: {
+        '@path': '$.integrations.Google Ads Conversions.session_attributes_encoded'
+      }
     },
     conversion_timestamp: {
       label: 'Conversion Timestamp',