Fix part of docstring timedelta index#59698
Part of #59698

Addresses:
pandas.TimedeltaIndex

Added missing 'See Also' sections (SA01) for the following methods:

- pandas.Timedelta.ceil
- pandas.Timedelta.floor
- pandas.Timedelta.asm8
- pandas.Timedelta.round

Removed:

- -i "pandas.Timedelta.asm8 SA01" \
- -i "pandas.Timedelta.ceil SA01" \
- -i "pandas.Timedelta.floor SA01" \
- -i "pandas.Timedelta.round SA01" \

from code_checks.sh
Thanks @uditbaliyan 