Drop Python 3.10

[mattwthompson]

April 4, 2025

https://numpy.org/neps/nep-0029-deprecation_policy.html

• Drop testing on Python 3.10 openff-bespokefit#396
• Drop testing on Python 3.10 openff-nagl#197
• Drop testing on Python 3.10 openff-nagl-models#54
• Drop testing on Python 3.10 openff-toolkit#2041
• Drop Python 3.10 openff-interchange#1194
• Drop testing on Python 3.10 openff-qcsubmit#338
• Drop testing on Python 3.10 openff-fragmenter#198
• Bump Python versions used in tests openff-evaluator#650
• Bump Python versions used in tests openff-recharge#191
• Drop testing on Python 3.10 smirnoff-plugins#81