lifelines, survival analysis in Python

0.28.0 - 2023-01-03

• Fixes bins that are far into the future with using survival_table_from_events, see #1587
• Removed sklean_adaptor. It was a terrible hack, and causing more confusion and support debt than I want. This cleans up our API and simplifies the library. ✨ There's no replacement, and I doubt I'll introduce one ✨
• Fix pandas>=2.0 compatibility.
• Fix overflow issue in NelsonAalenfitter, #1585
• officially drop support for < py3.9
• update some dependencies (pandas >= 1.2)