Update version to 6.25.0 (#8935)

Summary:
for release

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8935

Test Plan: CI

Reviewed By: ajkr

Differential Revision: D31056726

Pulled By: pdillinger

fbshipit-source-id: 6fd022c39c19c35f10a2367df45dd2deb43df510

HISTORY.md

@@ -1,6 +1,11 @@
 # Rocksdb Change Log
 ## Unreleased
 ### Bug Fixes
+### New Features
+### Public API change
+
+## 6.25.0 (2021-09-20)
+### Bug Fixes
 * Allow secondary instance to refresh iterator. Assign read seq after referencing SuperVersion.
 * Fixed a bug of secondary instance's last_sequence going backward, and reads on the secondary fail to see recent updates from the primary.
 * Fixed a bug that could lead to duplicate DB ID or DB session ID in POSIX environments without /proc/sys/kernel/random/uuid.

include/rocksdb/version.h

@@ -10,7 +10,7 @@
 #include "rocksdb/rocksdb_namespace.h"
 
 #define ROCKSDB_MAJOR 6
-#define ROCKSDB_MINOR 24
+#define ROCKSDB_MINOR 25
 #define ROCKSDB_PATCH 0
 
 // Do not use these. We made the mistake of declaring macros starting with