Fix proxy attribute name mismatch in RetryOperationsInterceptor

Signed-off-by: junhyeongkim2 <ggprgrkjh@naver.com>

Author: junhyeongkim2

src/main/java/org/springframework/retry/interceptor/RetryOperationsInterceptor.java

@@ -137,7 +137,7 @@ public Object doWithRetry(RetryContext context) throws Exception {
 		finally {
 			RetryContext context = RetrySynchronizationManager.getContext();
 			if (context != null) {
-				context.removeAttribute("__proxy__");
+				context.removeAttribute("___proxy___");
 			}
 		}
 	}