PoC: Allow loading images by name from imagestore #5815

Job	Run time
Integration tests	5m 6s
Lints	1m 43s
Windows tests	4m 13s
Unit tests (1.22.x)	49s
Unit tests (1.23.x)	4m 4s
Colima (v0.6.5)	4m 39s
Upgrade test (v0.15.1)	13m 0s
Integration tests (on Linux) (alpine.yaml)	7m 9s
VMNet test	14m 12s
Integration tests (on Linux) (debian.yaml)	6m 55s
vz (default.yaml)	3m 34s
Integration tests (on Linux) (fedora.yaml)	6m 36s
vz (fedora.yaml)	25m 51s
Integration tests (on Linux) (archlinux.yaml)	7m 48s
Integration tests (on Linux) (opensuse.yaml)	9m 13s
Integration tests (on Linux) (experimental/net-user-v2.yaml)	7m 6s
Integration tests (on Linux) (experimental/9p.yaml)	6m 46s
Integration tests (on Linux) (docker.yaml)	18m 35s
Integration tests (on Linux) (../hack/test-templates/alpine-9p-writable.yaml)	5m 38s
Integration tests (on Linux) (../hack/test-templates/test-misc.yaml)	19m 34s
	2h 52m 31s

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