fix: use alt mirrors for trivy db (#89) #391

Job	Run time
build-without-test-image / build image	54s
build / build image	1m 25s
build-with-fixed-image-tags / build image	56s
lint / CodeQL analyze (python)	1m 11s
lint / verify Dockerfile base image signature	4s
lint / dependency review	0s
lint / validate gradle wrapper	4s
lint / MegaLinter	0s
build-without-test-image / sign image	11s
build-without-test-image / attest trivy vulnerability report	11s
build-without-test-image / image-provenance	0s
build-without-test-image / upload slsa attestations to release assets	0s
build-with-fixed-image-tags / attest trivy vulnerability report	16s
build-with-fixed-image-tags / sign image	15s
build-with-fixed-image-tags / image-provenance	0s
build-with-fixed-image-tags / upload slsa attestations to release assets	0s
build / attest trivy vulnerability report	12s
build / sign image	11s
build / image-provenance	0s
build / upload slsa attestations to release assets	0s
test	10s
release / release	45s
	6m 45s

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