Bump `uv` to `0.4.28` #110929

Job	Run time
Build info	48s
Basic tests / React WWW tests	46s
Basic tests / Breeze unit tests	1m 22s
Basic tests / Test OpenAPI client	4m 47s
Basic tests / React UI tests	44s
Basic tests / Static checks: basic checks only	0s
Basic tests / Test Airflow release commands	7m 14s
Basic tests / Test git clone on Windows	15s
Basic tests / Upgrade checks	0s
Skip building CI images in-workflow / Skip building CI linux/amd64 image	7s
Wait for CI images	7m 1s
Additional CI image checks	1s
Static checks, mypy, docs	1s
Generate constraints	1s
Helm tests	1s
Postgres tests	1s
MySQL tests	1s
Sqlite tests	1s
Provider checks	1s
Integration Tests	1s
Non-DB tests	1s
Special tests	1s
Task SDK tests	1s
Lowest direct dependency resolution tests	1s
${{ (((needs.build-info.outputs.in-workflow-build == 'true') && 'Build') \|\| 'Skip building') }} PROD images in-workflow	1s
Wait for PROD images	1s
Additional PROD image tests	1s
Finalize tests	1s
Kubernetes tests	1s
Notify Slack on Failure	1s
	23m 23s

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