Bump version to 4.13.5

HISTORY.md

 # Rocksdb Change Log
+## 4.13.5
+### Public API Change
+* Fix a regression in compaction performance.
+* Disallow calling IngestExternalFile() on a dropped column family.
+* Add EventListener::OnExternalFileIngested() event that will be called for files that are successfully ingested.
+
 ## 4.13.4
 ### Public API Change
 * Removed flashcache support.

include/rocksdb/version.h

@@ -6,7 +6,7 @@
 
 #define ROCKSDB_MAJOR 4
 #define ROCKSDB_MINOR 13
-#define ROCKSDB_PATCH 4
+#define ROCKSDB_PATCH 5
 
 // Do not use these. We made the mistake of declaring macros starting with
 // double underscore. Now we have to live with our choice. We'll deprecate these