Move change log entry to 10.4.0

Signed-off-by: Binlong Gao <gbinlong@amazon.com>

Author: gaobinlong

lucene/CHANGES.txt

@@ -302,8 +302,6 @@ Improvements
 
 * GITHUB#15976: Store DocValuesSkipper data in their own file. (Alan Woodward)
 
-* GITHUB#15557: Introduce AllGroupsCollectorManager to parallelize search when using AllGroupsCollector. (Binlong Gao)
-
 * GITHUB#15574: Introduce TopGroupsCollectorManager to parallelize search when using TopGroupsCollector. (Binlong Gao)
 
 Optimizations
@@ -517,6 +515,8 @@ Improvements
 
 * GITHUB#15570: Disallow invalid offset 0 for LZ4 decompression (Marcono1234)
 
+* GITHUB#15557: Introduce AllGroupsCollectorManager to parallelize search when using AllGroupsCollector. (Binlong Gao)
+
 Optimizations
 ---------------------
 * GITHUB#15140: Optimize TopScoreDocCollector with TernaryLongHeap for improved performance over Binary-LongHeap. (Ramakrishna Chilaka)