Add functions to get system OS and arch #843

Job	Run time
Dagger Build and Test	15m 9s
Test Podman (/container)	7m 21s
Test Docker (/container)	6m 10s
Test Podman (/build)	11m 12s
Test Docker (/build)	6m 28s
Test Podman (/docs)	3m 21s
Test Docker (/docs)	4m 9s
Test Podman (/nomad)	8m 29s
Test Docker (/nomad)	7m 27s
Test Podman (/single_k3s_cluster)	7m 37s
Test Docker (/single_k3s_cluster)	4m 22s
Test Podman (/multiple_k3s_clusters)	4m 7s
Test Docker (/multiple_k3s_clusters)	13s
Test Podman (/exec)	1s
Test Docker (/exec)	13s
Test Podman (/certificates)	1s
Test Docker (/certificates)	1s
Test Podman (/terraform)	1s
Test Docker (/terraform)	1s
Test Docker (/registries)	1s
Test Docker (/copy)	1s
Create GitHub Release	1s
Sync winget-pkgs repo	1s
Publish to WinGet	1s
	1h 26m 28s

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