Updated cppcheck workflow on Linux

src/json_rpc_request.h

@@ -71,6 +71,7 @@ private:
 	static void on_alloc(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf);
 	static void on_read(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf);
 	void on_read(const char* data, size_t size);
+	// cppcheck-suppress functionConst
 	void close();
 	static void on_close(uv_handle_t* handle);