Revert "Lower zstd blockDocCount for best_speed from 128 to 96 (#112098)" (#112911)

This reverts commit 1d7e7bd.

Author: martijnvg

server/src/main/java/org/elasticsearch/index/codec/zstd/Zstd814StoredFieldsFormat.java

@@ -48,7 +48,7 @@ public final class Zstd814StoredFieldsFormat extends Lucene90CompressingStoredFi
     public static final String MODE_KEY = Zstd814StoredFieldsFormat.class.getSimpleName() + ".mode";
 
     public enum Mode {
-        BEST_SPEED(0, BEST_SPEED_BLOCK_SIZE, 96),
+        BEST_SPEED(0, BEST_SPEED_BLOCK_SIZE, 128),
         BEST_COMPRESSION(3, BEST_COMPRESSION_BLOCK_SIZE, 2048);
 
         final int level, blockSizeInBytes, blockDocCount;

server/src/test/java/org/elasticsearch/index/codec/CodecTests.java

@@ -59,7 +59,7 @@ public void testDefault() throws Exception {
         assumeTrue("Only when zstd_stored_fields feature flag is enabled", CodecService.ZSTD_STORED_FIELDS_FEATURE_FLAG.isEnabled());
         Codec codec = createCodecService().codec("default");
         assertEquals(
-            "Zstd814StoredFieldsFormat(compressionMode=ZSTD(level=0), chunkSize=14336, maxDocsPerChunk=96, blockShift=10)",
+            "Zstd814StoredFieldsFormat(compressionMode=ZSTD(level=0), chunkSize=14336, maxDocsPerChunk=128, blockShift=10)",
             codec.storedFieldsFormat().toString()
         );
     }