move get_solver test to more natural location (#1509) #9043

Job	Run time
Check code is formatted (Black)	19s
pytest (user mode) (py3.9/linux)	21m 5s
Code linting (pylint)	4m 37s
Test notebooks (py3.9/linux)	5m 19s
Tests (py3.9/linux)	35m 58s
pytest (user mode) (py3.9/win64)	21m 33s
Test notebooks (py3.9/win64)	9m 18s
Tests (py3.9/win64)	44m 34s
pytest (user mode) (py3.11/linux)	15m 9s
Test notebooks (py3.11/linux)	5m 9s
macOS setup (EXPERIMENTAL) (3.9)	37m 5s
Tests (py3.10/linux)	30m 31s
Test notebooks (py3.11/win64)	10m 18s
pytest (user mode) (py3.11/win64)	24m 16s
Tests (py3.10/win64)	56m 3s
Tests (py3.11/linux)	30m 49s
Tests (py3.11/win64)	58m 35s
Upload coverage report (Codecov)	13s
	6h 50m 51s

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