Finish the OpenGL context for offscreen windows #2

Job	Run time
build-and-test (3.10, ubuntu-latest)	6m 17s
build-and-test (3.10, windows-latest)	4m 2s
build-and-test (3.10, macos-13)	2m 55s
build-and-test (3.10, macos-14)	3m 11s
build-and-test (3.11, ubuntu-latest)	6m 22s
build-and-test (3.11, windows-latest)	3m 39s
build-and-test (3.11, macos-13)	8m 54s
build-and-test (3.11, macos-14)	2m 43s
build-and-test (3.12, ubuntu-latest)	6m 36s
build-and-test (3.12, windows-latest)	4m 9s
build-and-test (3.12, macos-13)	8m 24s
build-and-test (3.12, macos-14)	2m 55s
	1h 0m 7s

Provide feedback