chore: longer retry to mitigate occasional issues with github installs #859

Job	Run time
main image (silverblue, 37, nokmods)	5m 28s
main image (silverblue, 37, kmods)	9m 23s
main image (silverblue, 38, nokmods)	5m 54s
main image (silverblue, 38, kmods)	6m 38s
main image (silverblue, 39, nokmods)	3m 34s
main image (kinoite, 37, nokmods)	5m 35s
main image (kinoite, 37, kmods)	8m 30s
main image (kinoite, 38, nokmods)	4m 30s
main image (kinoite, 38, kmods)	6m 24s
main image (kinoite, 39, nokmods)	3m 42s
main image (sericea, 38, nokmods)	5m 25s
main image (sericea, 38, kmods)	6m 32s
main image (sericea, 39, nokmods)	5m 48s
main image (onyx, 39, nokmods)	5m 25s
main image (base, 37, nokmods)	5m 17s
main image (base, 37, kmods)	8m 45s
main image (base, 38, nokmods)	3m 42s
main image (base, 38, kmods)	8m 12s
main image (base, 39, nokmods)	2m 59s
main image (lxqt, 37, nokmods)	6m 27s
main image (lxqt, 37, kmods)	7m 19s
main image (lxqt, 38, nokmods)	6m 0s
main image (lxqt, 38, kmods)	7m 37s
main image (lxqt, 39, nokmods)	4m 11s
main image (mate, 37, nokmods)	5m 51s
main image (mate, 37, kmods)	8m 34s
main image (mate, 38, nokmods)	5m 12s
main image (mate, 38, kmods)	8m 50s
main image (mate, 39, nokmods)	6m 6s
main image (vauxite, 37, nokmods)	4m 34s
main image (vauxite, 37, kmods)	7m 41s
main image (vauxite, 38, nokmods)	4m 11s
main image (vauxite, 38, kmods)	8m 26s
main image (vauxite, 39, nokmods)	3m 40s
Check all builds successful	1s
	3h 26m 23s

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