DOC: Add Hail to the out-of-core community list

[danking]

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/community/ecosystem.html

Documentation problem

Hail is an out-of-core, genetics-focused DataFrame library in the Pandas ecosystem.

Suggested fix for documentation

I propose it is added to the ecosystem list.