Added std::format include into unified agent logger

Разломались на вызове YLOG\_DEBUG\_F с ошибкой:

```
/home/kirill-bel/arcadia/logbroker/unified_agent/common/zstd_file_stream.cpp:39:17: error: no member named 'format' in namespace 'std'
39 |                 YLOG_DEBUG_F("TZstdFileStream starting from frame pos = {} frame offset = {}",
   |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
40 |                     lastFramePos, lastFrameOffset);
   |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```

В YLOG\_DEBUG\_F используется `std::format`, но хедер не включен в `library/cpp/unified_agent_client/logger.h`:

```
#define YLOG_DEBUG_F(fmt, ...) YLOG_DEBUG(std::format(fmt, __VA_ARGS__))
```
commit_hash:0a82f439ec6b8d83e2f4ac1a7d8a8c8cf29b9cc2

0 files changed, 0 insertions, 0 deletions