Add tests #14

Job	Run time
Supported processor platforms	21s
Lint Dockerfile	5s
Build linux/amd64 image	34s
Build linux/arm image	54s
Build linux/arm64 image	53s
Build linux/386 image	42s
Build linux/ppc64le image	1m 7s
Build linux/riscv64 image	55s
Build linux/s390x image	1m 12s
Scan for vulnerabilities (linux/amd64)	20s
Scan for vulnerabilities (linux/arm)	18s
Scan for vulnerabilities (linux/arm64)	19s
Scan for vulnerabilities (linux/386)	18s
Scan for vulnerabilities (linux/ppc64le)	19s
Scan for vulnerabilities (linux/riscv64)	18s
Scan for vulnerabilities (linux/s390x)	19s
Test linux/amd64	24s
Test linux/arm	15s
Test linux/arm64	17s
Test linux/386	21s
Test linux/ppc64le	25s
Test linux/riscv64	15s
Test linux/s390x	24s
Push	0s
	11m 15s

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