Merge pull request #2736 from AkihiroSuda/dev #5968

Job	Run time
Windows tests	5m 8s
Integration tests	13m 18s
Lints	1m 45s
Colima (v0.6.5)	7m 44s
Integration tests (on Linux) (alpine.yaml)	6m 16s
Integration tests (on Linux) (debian.yaml)	6m 28s
Integration tests (on Linux) (fedora.yaml)	6m 24s
Integration tests (on Linux) (opensuse.yaml)	7m 7s
Integration tests (on Linux) (docker.yaml)	7m 19s
Integration tests (on Linux) (../hack/test-templates/alpine-iso-9p-writable.yaml)	5m 44s
Integration tests (on Linux) (../hack/test-templates/net-user-v2.yaml)	7m 35s
Integration tests (on Linux) (../hack/test-templates/test-misc.yaml)	19m 38s
Unit tests (1.22.x)	53s
Unit tests (1.23.x)	4m 27s
Upgrade test (v0.15.1)	11m 34s
VMNet test	9m 22s
vz (default.yaml)	10m 31s
vz (fedora.yaml)	10m 8s
	2h 21m 21s

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