Fix build for macos-arm64-macosx-clang17-no-san (facebook#12949)

Summary:
When merged into internal code base we see the following error. This should fix it.

```
Actions failed:
    [2024-08-20T07:45:53.879-07:00] Action failed: fbcode//rocksdb/src:rocksdb_lib (cfg:macos-arm64-macosx-clang17-no-san#e5847010950663ca) (cxx_compile util/write_batch_util.cc)
[2024-08-20T07:45:53.879-07:00] Remote command returned non-zero exit code 1
[2024-08-20T07:45:53.879-07:00] Remote action, reproduce with: `frecli cas download-action 2fe3749f2d3ea6107cce103d4e2be1dcc76a9df797bae308cde5eaccc65201b7:145`
fbcode/rocksdb/src/include/rocksdb/write_batch.h:460:14: error: no template named 'unordered_map' in namespace 'std'; did you mean 'unordered_set'?
  const std::unordered_map<uint32_t, size_t>& GetColumnFamilyToTimestampSize() {
        ~~~~~^~~~~~~~~~~~~
fbcode/rocksdb/src/include/rocksdb/write_batch.h:540:8: error: no template named 'unordered_map' in namespace 'std'; did you mean 'unordered_set'?
  std::unordered_map<uint32_t, size_t> cf_id_to_ts_sz_;
  ~~~~~^~~~~~~~~~~~~
/paragon/pods/259551525/home/execution/3/202ac945754041b6bc424b0c35e42c9d/work/buck-out/v2/gen/fbsource/a90614bbe22ec1d7/xplat/toolchains/minimal_xcode/__clang_genrule__/out/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__memory/compressed_pair.h:113:3: error: static_assert failed due to requirement '!is_same<unsigned long, unsigned long>::value' "__compressed_pair cannot be instantiated when T1 and T2 are the same type; The current implementation is NOT ABI-compatible with the previous implementation for this configuration"
  static_assert((!is_same<_T1, _T2>::value),
  ^              ~~~~~~~~~~~~~~~~~~~~~~~~~
```

Pull Request resolved: facebook#12949

Test Plan: CI

Reviewed By: jowlyzhang, cbi42

Differential Revision: D61577604

Pulled By: jaykorean

fbshipit-source-id: 3584a2cd550a303346d80ccc5cc90f4a9b3e2da2

include/rocksdb/write_batch.h

@@ -30,7 +30,7 @@
 #include <functional>
 #include <memory>
 #include <string>
-#include <vector>
+#include <unordered_map>
 
 #include "rocksdb/status.h"
 #include "rocksdb/write_batch_base.h"