PR summary

This is the corollary to #26706 for the 3.8.x branch.

Official NumPy guidance is that we should be pinning because it is expected that forwards
compatibility of compiled wheels will break. While API changes should be relatively minimal,
ABI changes may still catch users.

Unfortunatly we cannot go back and pin for all previous releases, but may as well do what we can now.

PR checklist

• [n/a] "closes #0000" is in the body of the PR description to link the related issue
• [n/a] new and changed code is tested
• [n/a] Plotting related features are demonstrated in an example
• [n/a] New Features and API Changes are noted with a directive and release note
• [n/a] Documentation complies with general and docstring guidelines