Fixed ring buffer sink

tests/test_ringbuffer_sink.cpp

@@ -37,7 +37,7 @@ TEST_CASE("test_drain_raw", "[ringbuffer_sink]") {
         }
 
         int counter = 0;
-        sink->drain_raw([&](const spdlog::details::log_msg_buffer &buffer) {
+        sink->drain_raw([&](const spdlog::details::async_log_msg &buffer) {
             REQUIRE(buffer.payload.data() == std::to_string(counter + 1));
             counter++;
         });
@@ -68,4 +68,4 @@ TEST_CASE("test_empty_size", "[ringbuffer_sink]") {
     sink->drain([&](std::string_view) {
         REQUIRE_FALSE(true);  // should not be called since the sink size is 0
     });
-}
+}