feat: utilize uv CI cache #444

Job	Run time
Build, stable, linux/amd64	4m 58s
Build, stable, linux/arm64	19m 0s
Test basic, stable	3m 5s
Anchore Container Scan	1m 19s
Trivy Container Scan	2m 19s
Test split, stable	2m 44s
Test novolume, stable	3m 12s
Test SAML, stable	2m 14s
Test single celery process, stable	2m 28s
Test SSL, stable	2m 30s
Merge images	3m 3s
Publish to Docker Hub, stable	0s
Publish to GitHub, stable	0s
Create release on GitHub	0s
	46m 52s

Provide feedback