Is your feature request related to a problem or challenge?
Follow up on #8159 #8193
While implementing fixes for two tickets above there is a small tech debt which needs to be adressed
Describe the solution you'd like
Its needed to do a small refactoring on timestamp conversions
- use arrow-rs cast kernel for Float -> Timestamp conversion
- get rid of double cast on Integer -> Timestamp conversion
Describe alternatives you've considered
No response
Additional context
No response