Remove user@host from the lima ssh key #4825

Job	Run time
Colima (v0.6.5)	6m 50s
Lints	2m 4s
Integration tests (on Linux) (alpine.yaml)	5m 15s
Integration tests	9m 42s
Integration tests (on Linux) (debian.yaml)	7m 41s
Unit tests (1.21.x)	1m 0s
Upgrade test (v0.15.1)	8m 32s
Integration tests (on Linux) (fedora.yaml)	5m 50s
Unit tests (1.22.x)	3m 36s
VMNet test	8m 8s
Integration tests (on Linux) (archlinux.yaml)	8m 0s
Integration tests (on Linux) (opensuse.yaml)	7m 24s
vz (experimental/vz.yaml)	13m 6s
Windows tests	4m 18s
Integration tests (on Linux) (experimental/net-user-v2.yaml)	6m 37s
vz (fedora.yaml)	23m 10s
Integration tests (on Linux) (experimental/9p.yaml)	6m 45s
Integration tests (on Linux) (docker.yaml)	6m 59s
Integration tests (on Linux) (../hack/test-templates/alpine-9p-writable.yaml)	4m 22s
Integration tests (on Linux) (../hack/test-templates/test-misc.yaml)	18m 57s
	2h 38m 16s

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