feat: utilize uv CI cache #9093

Job	Run time
Build, stable, linux/amd64	5m 2s
Build, stable, linux/arm64	19m 7s
Test basic, stable	5m 42s
Trivy Container Scan	4m 29s
Anchore Container Scan	3m 54s
Test SAML, stable	2m 44s
Test novolume, stable	3m 17s
Test split, stable	2m 44s
Test single celery process, stable	2m 25s
Test SSL, stable	2m 32s
Merge images	2m 45s
Publish to GitHub, stable	0s
Publish to Docker Hub, stable	0s
Create release on GitHub	0s
	54m 41s

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