Support py3.9/3.9 on workflows #1131

Job	Run time
conda-linux-gallery-python3.12-ros3	1m 27s
linux-gallery-python3.8-minimum	2m 49s
conda-linux-python3.12-ros3	1m 37s
linux-gallery-python3.12-upgraded	2m 23s
linux-python3.8-minimum	26m 18s
windows-gallery-python3.8-minimum	3m 12s
linux-python3.12-upgraded	30m 13s
conda-linux-python3.8-minimum	22m 3s
windows-gallery-python3.12-upgraded	3m 57s
windows-python3.8-minimum	25m 52s
conda-linux-python3.12-upgraded	21m 26s
windows-python3.12-upgraded	25m 38s
macos-python3.8-minimum	35m 38s
Deploy pre-release from dev	0s
	3h 22m 33s

Provide feedback