Relax pandas>=2.2.2 version bound to 1.5.x

[ghackebeil]

Curious if you think this would be a big lift? Happy to submit a pull request with necessary changes, if you think it's not a lost cause.

[nick-gorman]

@ghackebeil pardon the slow response. I haven't actually taken a close look. I'd be more than happy if you wanted to investigate and open a PR if required.

[ghackebeil]

No worries, @nick-gorman. I've created a pull request to address this:
#37