Add python 3.14 to testing, drop python 3.10

[chrisjonesBSU]

PR Summary:

Just wanted to get this going to see where dependencies and testing passes or fails for python 3.14

PR Checklist

---

• Includes appropriate unit test(s)
• Appropriate docstring(s) are added/updated
• Code is (approximately) PEP8 compliant
• Issue(s) raised/addressed?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.95%. Comparing base (8683ae0) to head (8419023).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #948   +/-   ##
=======================================
  Coverage   93.95%   93.95%           
=======================================
  Files          67       67           
  Lines        7672     7672           
=======================================
  Hits         7208     7208           
  Misses        464      464           

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[CalCraven]

Looks like parmed isn't updated to 3.14

[CalCraven]

Looks like it's maybe an openmm vs pycifrw conflict. Wonder if it would work if we unpinned:
openmm<8.4.0
Since the latest release is 8.4.0.