fix: ensure interrupted signal is emitted when flushing text in GeminiLlmConnection

src/google/adk/models/gemini_llm_connection.py

@@ -281,8 +281,7 @@ async def receive(self) -> AsyncGenerator[LlmResponse, None]:
             if text:
               yield self.__build_full_text_response(text)
               text = ''
-            else:
-              yield LlmResponse(interrupted=message.server_content.interrupted)
+            yield LlmResponse(interrupted=message.server_content.interrupted)
         if message.tool_call:
           if text:
             yield self.__build_full_text_response(text)