ci: only tag container with newest tag with latest-release #276

Job	Run time
Code style	7s
Modern Python (3.9)	1m 58s
Modern Python (3.10)	2m 18s
Modern Python (3.11)	1m 54s
Modern Python (3.12)	2m 58s
Modern Python (3.13)	2m 1s
Build, test and deploy container images (kas, bullseye)	11m 49s
Build, test and deploy container images (kas, bookworm)	11m 49s
Build, test and deploy container images (kas-isar, bullseye)	11m 30s
Build, test and deploy container images (kas-isar, bookworm)	11m 27s
cleanup untagged ${{ matrix.image-name }} containers	0s
	57m 51s

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