3126: Fix OpenCl and covariance issues #3212

Job	Run time
Generate test matrix	7s
Test (ubuntu-20.04, 3.11)	2m 18s
Test (ubuntu-20.04, 3.10)	2m 28s
Test (ubuntu-22.04, 3.11)	2m 33s
Test (ubuntu-22.04, 3.10)	2m 30s
Test (windows-latest, 3.11)	5m 3s
Test (windows-latest, 3.10)	5m 10s
Test (macos-13, 3.11)	3m 52s
Test (macos-13, 3.10)	2m 26s
Test (macos-latest, 3.11)	2m 22s
Test (macos-latest, 3.10)	1m 30s
Test (ubuntu-latest, 3.11)	2m 32s
Test (ubuntu-latest, 3.10)	2m 30s
Installer (ubuntu-20.04, 3.11)	8m 27s
Installer (ubuntu-22.04, 3.11)	8m 44s
Installer (windows-latest, 3.11)	17m 57s
Installer (macos-13, 3.11)	25m 43s
Installer (macos-latest, 3.11)	15m 30s
Test installer (windows-latest, 3.11)	2m 9s
Test installer (ubuntu-20.04, 3.11)	1m 29s
	1h 55m 20s

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