Update install_developers.rst #919

Job	Run time
conda-linux-gallery-python3.11-ros3	2m 23s
conda-linux-python3.11-ros3	1m 55s
linux-gallery-python3.8-minimum	2m 6s
linux-python3.8-minimum	24m 31s
linux-gallery-python3.11-upgraded	2m 0s
linux-python3.11-upgraded	21m 16s
windows-gallery-python3.8-minimum	3m 15s
windows-python3.8-minimum	23m 58s
conda-linux-python3.8-minimum	21m 8s
windows-gallery-python3.11-upgraded	3m 19s
windows-python3.11-upgraded	23m 42s
conda-linux-python3.11-upgraded	19m 27s
macos-python3.8-minimum	43m 55s
Deploy pre-release from dev	0s
	3h 12m 55s

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