docs: updating readme to show how to get kubeseal version dynamically… #1625

Job	Run time
Load versions.env	4s
Build (1.20.3, macos-latest, 1.8.1)	2m 36s
Build (1.20.3, windows-latest, 1.8.1)	6m 15s
Build (1.20.3, ubuntu-latest, 1.8.1)	2m 44s
Run linters (1.20.3, ubuntu-latest, 1.52.2)	4m 41s
Build Container	2m 0s
Run gosec (1.20.3, ubuntu-latest, 2.15.0)	2m 58s
Integration (controller.yaml) (1.24.15)	7m 33s
Integration (controller.yaml) (1.25.11)	7m 3s
Integration (controller.yaml) (1.26.6)	5m 27s
Integration (controller.yaml) (1.27.3)	6m 45s
Integration (Helm Chart) (1.24.15)	5m 28s
Integration (Helm Chart) (1.25.11)	6m 4s
Integration (Helm Chart) (1.26.6)	6m 24s
Integration (Helm Chart) (1.27.3)	6m 21s
	1h 12m 23s

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