feat: make rafiki admin auth optional #1091

Job	Run time
prerequisite	34s
version-generator	9s
docker-build (linux/amd64, amd64, auth)	1m 19s
docker-build (linux/amd64, amd64, backend)	1m 11s
docker-build (linux/amd64, amd64, frontend)	1m 27s
docker-build (linux/arm64, arm64, auth)	4m 17s
docker-build (linux/arm64, arm64, backend)	5m 8s
docker-build (linux/arm64, arm64, frontend)	3m 56s
token-introspection	32s
auth	1m 16s
frontend	31s
backend	4m 43s
graphql (auth)	2m 29s
codeql-analyze (javascript, ./.github/codeql/source.yml)	2m 4s
codeql-analyze (javascript, ./.github/codeql/tests.yml)	1m 25s
mock-account-servicing-entity	30s
graphql (backend)	2m 36s
integration-test	2m 35s
Docker Trivy Scan (linux/amd64, amd64, auth)	8s
Docker Grype Scan (linux/amd64, amd64, auth)	13s
Docker Trivy Scan (linux/amd64, amd64, backend)	8s
Docker Grype Scan (linux/amd64, amd64, backend)	19s
Docker Trivy Scan (linux/amd64, amd64, frontend)	12s
Docker Grype Scan (linux/amd64, amd64, frontend)	14s
Docker Trivy Scan (linux/arm64, arm64, auth)	8s
Docker Grype Scan (linux/arm64, arm64, auth)	12s
Docker Trivy Scan (linux/arm64, arm64, backend)	7s
Docker Grype Scan (linux/arm64, arm64, backend)	17s
Docker Grype Scan (linux/arm64, arm64, frontend)	19s
Docker Trivy Scan (linux/arm64, arm64, frontend)	16s
node-build	32s
Push to registry	0s
generate-release	0s
	39m 47s

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