feat(cli): add step to install ArgoCD

[bachgg]

• oms beta install argocd to install ArgoCD helm chart with desired version
• One can pass a chart version to --version and if not, the latest chart version is installed
• Pass --deploy-dc-config to install a local cluster secret for ArgoCD, AppProject resources, secrets for ArgoCD to read manifests from git repo and helm registry
• Repo & registry secrets are passed into arguments
• Bootstrap resources after helm install are taken from the charts repo

To manually test this PR:

• make a kind cluster: kind create cluster
• install: ./oms beta install argocd --dc-id 7 --git-password 00001112222 --registry-password 12345999 --deploy-dc-config
• open ArgoCD UI according to command output
• check git secret: kubectl get secrets/argocd-codesphere-repos-read -nargocd -ojson | jq -r ".data.password" | base64 -d
• check registry secret: kubectl get secrets/argocd-codesphere-oci-read -nargocd -ojson | jq -r ".data.password" | base64 -d

[NautiluX]

thanks for the update and making some artifacts optional!

[NautiluX]

Only two minor comments, rest lgtm :)