chore(deps): update dependency astral-sh/uv to v0.9.21 #14453

Job	Run time
ci / revisions	4s
ci / buildx / Build, bleeding, arm64	5m 3s
ci / build / Build, bleeding, amd64	5m 19s
ci / Anchore Container Scan	2m 11s
ci / Trivy Container Scan	2m 19s
ci / test-saml / Test container saml, bleeding	7m 55s
ci / test-novolume / Test container read-write, bleeding	8m 34s
ci / test-localtime / Test container localtime, bleeding	8m 19s
ci / test-anubis / Test container anubis, bleeding	9m 4s
ci / test-basic / Test container basic, bleeding	7m 43s
ci / test-single-celery / Test container celery-single, bleeding	7m 43s
ci / Merge images, bleeding	2m 2s
ci / test-split / Test container split, bleeding	9m 44s
ci / test-ssl / Test container basic, bleeding	11m 2s
ci / Lint, bleeding	4s
ci / Tests, bleeding	2s
ci / Publish to Docker Hub, ${{ inputs.variant }}	0s
ci / Publish to GitHub, ${{ inputs.variant }}	0s
	1h 27m 8s

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