Add ThermoPower branch v4.0.0-dev to the CI #462

Job	Run time
GitHub Actions Test (windows-latest, nightly, 3.10)	10m 28s
GitHub Actions Test (windows-latest, stable, 3.10)	12m 0s
GitHub Actions Test (ubuntu-latest, nightly, 3.10)	6m 5s
GitHub Actions Test (ubuntu-latest, stable, 3.10)	5m 58s
	34m 31s

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