Removes use_tidy_style() from upkeep

[edgararuiz]

Removes usethis::use_tidy_style() from pre-history section of the to-do's upkeep function.

Running it today returns:

> usethis::use_tidy_style()
Warning message:
`use_tidy_style()` was deprecated in usethis 3.2.0.
ℹ Please use `use_air()` instead.
ℹ To continue using the styler package, call `styler::style_pkg()` or `styler::style_dir()` directly.
This warning is displayed once every 8 hours.
Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated. 

This change:

• Removes the line
• Updates the test snapshot
• Adds NEWS item

[jennybc]

Thanks!