PoC: Implement optional host proxy for lima cache #5990

Job	Run time
Integration tests	17m 46s
Lints	3m 42s
Colima (v0.6.5)	8m 26s
Integration tests (on Linux) (alpine.yaml)	7m 40s
Integration tests (on Linux) (debian.yaml)	7m 23s
Spell check	11s
Integration tests (on Linux) (fedora.yaml)	7m 17s
Unit tests (1.22.x)	5m 48s
Upgrade test (v0.15.1)	17m 18s
Unit tests (1.23.x)	5m 36s
Integration tests (on Linux) (opensuse.yaml)	9m 28s
VMNet test	28m 19s
vz (default.yaml)	13m 36s
Integration tests (on Linux) (docker.yaml)	8m 11s
Windows tests	7m 28s
vz (fedora.yaml)	13m 28s
Integration tests (on Linux) (../hack/test-templates/alpine-iso-9p-writable.yaml)	6m 47s
Integration tests (on Linux) (../hack/test-templates/net-user-v2.yaml)	8m 24s
Integration tests (on Linux) (../hack/test-templates/test-misc.yaml)	37m 17s
	3h 34m 5s

Provide feedback