bootstrap: cleaner github runner free space maximaser #80

Job	Run time
macos/macos-13/admin / bootstrap	27m 21s
macos/macos-13/dev_single / bootstrap	6h 0m 16s
linux/fedora:40/admin / bootstrap	8s
linux/archlinux:latest/admin / bootstrap	15s
linux/fedora:40/dev_single / bootstrap	9s
linux/archlinux:latest/dev_single / bootstrap	12s
linux/fedora:39/admin / bootstrap	11s
linux/fedora:39/dev_single / bootstrap	12s
macos/macos-14/admin / bootstrap	15m 12s
macos/macos-14/dev_single / bootstrap	15m 0s
	6h 58m 56s

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