Auto build QGIS server Docker images #845

Job	Run time
build nightly (desktop)	5m 46s
build (desktop, stable, ubuntu, focal)	12s
build nightly (server)	4m 33s
build (desktop, stable, ubuntu, jammy)	15m 13s
build (desktop, stable, ubuntu, noble)	1h 15m 5s
build (desktop, stable, debian, bookworm)	15m 37s
build (desktop, ltr, ubuntu, focal)	13s
build (desktop, ltr, ubuntu, jammy)	12s
build (desktop, ltr, ubuntu, noble)	13s
build (desktop, ltr, debian, bookworm)	19s
build (server, stable, ubuntu, focal)	10s
build (server, stable, ubuntu, jammy)	1h 7m 42s
build (server, stable, ubuntu, noble)	1h 7m 16s
build (server, stable, debian, bookworm)	1h 7m 37s
build (server, ltr, ubuntu, focal)	8s
build (server, ltr, ubuntu, jammy)	16s
build (server, ltr, ubuntu, noble)	7s
build (server, ltr, debian, bookworm)	8s
	5h 20m 47s

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