Add new IndexVersion for reading .si files from memory

Author: blerer

server/src/main/java/org/elasticsearch/index/IndexVersions.java

@@ -197,6 +197,7 @@ private static Version parseUnchecked(String version) {
     public static final IndexVersion TIME_SERIES_ALL_FIELDS_USE_SKIPPERS = def(9_046_0_00, Version.LUCENE_10_3_1);
     public static final IndexVersion UPGRADE_TO_LUCENE_10_3_2 = def(9_047_0_00, Version.LUCENE_10_3_2);
     public static final IndexVersion SECURITY_MIGRATIONS_METADATA_FLATTENED_UPDATE = def(9_048_0_00, Version.LUCENE_10_3_2);
+    public static final IndexVersion READ_SI_FILES_FROM_MEMORY_FOR_HOLLOW_COMMITS = def(9_049_0_00, Version.LUCENE_10_3_2);
 
     /*
      * STOP! READ THIS FIRST! No, really,