MGMT-22939: Fix cache key to get mustgather image #9940

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Status	Duration	Name
🟢 Succeeded	6 seconds	init
🟢 Succeeded	23 seconds	clone-repository
🟢 Succeeded	2 minutes	prefetch-dependencies
🟢 Succeeded	8 minutes	build-images
🟢 Succeeded	6 minutes	build-images
🟢 Succeeded	6 minutes	build-images
🟢 Succeeded	10 minutes	build-images
🟢 Succeeded	23 seconds	build-image-index
🟢 Succeeded	48 seconds	build-source-image
🟢 Succeeded	37 seconds	clair-scan
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🟢 Succeeded	36 seconds	clair-scan
🟢 Succeeded	38 seconds	clair-scan
🟢 Succeeded	43 seconds	clamav-scan
🟢 Succeeded	7 seconds	coverity-availability-check
🟢 Succeeded	20 seconds	deprecated-base-image-check
🟢 Succeeded	1 minute	ecosystem-cert-preflight-checks
🟢 Succeeded	1 minute	ecosystem-cert-preflight-checks
🟢 Succeeded	1 minute	ecosystem-cert-preflight-checks
🟢 Succeeded	1 minute	sast-snyk-check
🟢 Succeeded	5 seconds	apply-tags
🟢 Succeeded	43 seconds	clamav-scan
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🟢 Succeeded	46 seconds	clamav-scan
🟢 Succeeded	1 minute	ecosystem-cert-preflight-checks
🟢 Succeeded	9 seconds	push-dockerfile
🟢 Succeeded	2 minutes	rpms-signature-scan
🟢 Succeeded	1 minute	sast-unicode-check
🟢 Succeeded	22 seconds	sast-shell-check
🟢 Succeeded	9 seconds	show-sbom