Bump github.com/spf13/viper from 1.15.0 to 1.19.0 #3135

Job	Run time
detect	1s
build-toolkit	1m 47s
build-matrix (blue) / build-os	3m 21s
build-matrix (blue) / detect	10s
build-matrix (green) / detect	8s
build-matrix (green) / build-os	2m 53s
build-matrix (orange) / detect	8s
build-matrix (orange) / build-os	3m 26s
build-matrix (green) / build-disk	3m 3s
build-matrix (green) / build-iso	1m 50s
build-matrix (blue) / build-iso	1m 39s
build-matrix (blue) / build-disk	2m 25s
build-matrix (orange) / build-disk	3m 14s
build-matrix (orange) / build-iso	2m 34s
build-matrix (green) / test-installer	3m 47s
build-matrix (blue) / test-installer	3m 34s
build-matrix (blue) / tests-matrix (test-active)	3m 2s
build-matrix (green) / tests-matrix (test-upgrade)	3m 49s
build-matrix (green) / tests-matrix (test-downgrade)	5m 0s
build-matrix (green) / tests-matrix (test-recovery)	10m 25s
build-matrix (green) / tests-matrix (test-fallback)	10m 12s
build-matrix (green) / tests-matrix (test-fsck)	4m 48s
build-matrix (green) / tests-matrix (test-grubfallback)	4m 27s
build-matrix (orange) / test-installer	4m 18s
build-matrix (orange) / tests-matrix (test-active)	3m 8s
	1h 23m 9s

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