Unpin test requirements

[marthacryan]

• Replaces the separated files which pinned different versions of packages for each version of python with two files that list the unpinned requirements for core / optional tests
• Updates the CI config to be more parameterized
• Removes the no numpy tests - it turns out that it wasn't actually testing without numpy, and since we added narwhals our tests do in fact fail without numpy
• Removes orca tests from config
• Adds uv into a couple of more spots to speed up the dependency downloads
• Removes unused commit step from plotly.js dev build job
• Removes unused import of ipython and sage salvus in plotly/tools.py

[emilykl]

Suggested change

	name: "Test optional with pandas 1.2.4"
	name: "Test optional with python << parameters.python_version >> and pandas << parameters.pandas_version >>"

(does this work?)

[marthacryan]

Unfortunately it doesn't look like the other one is working so I don't think we can actually use this here :(