Add OSS-Fuzz build script #5662

Job	Run time
Colima (v0.6.5)	7m 10s
Integration tests (on Linux) (alpine.yaml)	5m 50s
Integration tests	9m 32s
Integration tests (on Linux) (debian.yaml)	6m 58s
Lints	28s
Integration tests (on Linux) (fedora.yaml)	6m 48s
Unit tests (1.22.x)	37s
Upgrade test (v0.15.1)	14m 46s
Integration tests (on Linux) (archlinux.yaml)	7m 57s
Unit tests (1.23.x)	4m 0s
Integration tests (on Linux) (opensuse.yaml)	8m 41s
VMNet test	11m 23s
vz (default.yaml)	28m 7s
Integration tests (on Linux) (experimental/net-user-v2.yaml)	6m 48s
Windows tests	5m 2s
vz (fedora.yaml)	10m 57s
Integration tests (on Linux) (experimental/9p.yaml)	6m 47s
Integration tests (on Linux) (docker.yaml)	21m 47s
Integration tests (on Linux) (../hack/test-templates/alpine-9p-writable.yaml)	5m 21s
Integration tests (on Linux) (../hack/test-templates/test-misc.yaml)	19m 55s
	3h 8m 54s

Provide feedback