add webbpsf and poppy to dev requirements

[braingram]

As both webbpsf (and poppy used by webbpsf) should now be compatible with numpy 2.0 this PR adds their development versions to requirements-dev-st.txt.

While testing this PR it was revealed that numpy 2.0 was not being installed with the devdeps runs in this PR, changing the numpy requirement to >=2.0.0.dev0 convince pip to install 2.0

The remaining warnings seen in the devdeps jobs do not appear to be related to numpy 2.0 and appear to match the numerous warnings that appear on the non-devdeps runs.

Checklist

• added entry in CHANGES.rst under the corresponding subsection
• updated relevant tests
• updated relevant documentation
• updated relevant milestone(s)
• added relevant label(s)
• ran regression tests, post a link to the Jenkins job below. How to run regression tests on a PR

[codecov]

Codecov Report

All modified lines are covered by tests ✅

📢 Thoughts on this report? Let us know!.

[schlafly]

Looks good to me, thanks!

[braingram]

Quickly merging while it's all green... :)