Fast Hermite interpolation and observables #10716

Job	Run time
style	25s
Doctests (ubuntu-latest / Python 3.11)	3m 27s
Tests (ubuntu-latest / Python 3.9)	30m 41s
Example scripts (ubuntu-latest / Python 3.12)	13m 31s
Tests (ubuntu-latest / Python 3.10)	29m 21s
Example notebooks (ubuntu-latest / Python 3.12)	19m 9s
Tests (ubuntu-latest / Python 3.11)	25m 59s
Tests (ubuntu-latest / Python 3.12)	33m 20s
Tests (macos-12 / Python 3.9)	33m 29s
Tests (macos-12 / Python 3.10)	21m 41s
Tests (macos-12 / Python 3.11)	16m 35s
Tests (macos-12 / Python 3.12)	21m 36s
Tests (macos-14 / Python 3.9)	10m 48s
Tests (macos-14 / Python 3.10)	11m 8s
Tests (macos-14 / Python 3.11)	17m 41s
Tests (macos-14 / Python 3.12)	9m 42s
Tests (windows-latest / Python 3.9)	30m 38s
Tests (windows-latest / Python 3.10)	32m 37s
Tests (windows-latest / Python 3.11)	27m 25s
Tests (windows-latest / Python 3.12)	25m 31s
	6h 54m 44s

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