 Document `tarantool.build.tzdata_version`



The option shows a version of tzdata module:

```
tarantool> require('tarantool').build.tzdata_version
---
- 2024a
...
```

Please update the tarantool module documentation:

https://www.tarantool.io/en/doc/latest/reference/reference_lua/tarantool/
Requested by @ligurio in https://github.com/tarantool/tarantool/commit/f8d77dbecd41037e5699e43234eb64c5087526ba.