Build and Upload OS image #786

Job	Run time
Determine build settings	6s
Build OS using mkosi (aws, aws-nitro-tpm)	7m 22s
Build OS using mkosi (aws, aws-sev-snp)	8m 13s
Build OS using mkosi (azure, azure-sev-snp)	7m 25s
Build OS using mkosi (gcp, gcp-sev-es)	7m 29s
Build OS using mkosi (gcp, gcp-sev-snp)	7m 8s
Build OS using mkosi (qemu, qemu-vtpm)	6m 55s
Build OS using mkosi (openstack, qemu-vtpm)	7m 16s
Calculate PCRs	1s
Upload OS image to CSP	1s
Upload SBOM	1s
Sign & upload PCRs	1s
Upload image lookup table and CLI compatibility info	1s
Add image version to versionsapi	1s
Add CLI version to versionsapi	1s
	52m 1s

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