DOC: Reference to deprecated week and weekofyear attributes

[tray3j]

Pandas version checks

• I have checked that the issue still exists on the latest versions of the docs on main here

Location of the documentation

https://pandas.pydata.org/docs/dev/user_guide/timeseries.html#time-date-components

Documentation problem

Per this discussion: https://github.com/pandas-dev/pandas/issues/55092 the week and weekofyear attributes are deprecated since 1.1.0 and DatetimeIndex.isocalendar().week is now recommended.

Suggested fix for documentation

We should update the user guide to reflect isocalendar().week funcitonality. We should delete the rows in the table relating to week and weekofyear attributes under .dt. A reference already exists to isocalendar() but it is currently not clear to the user that this is the only way to access week of year date information.

[lithomas1]

PRs would be welcome.