UID2-4808 change policy to enum

[cYKatherine]

No description provided.

[mcollins-ttd]

Suggested change

	GCP_OIDC,
	GCP_VMID,
	AWS_NITRO,
	AZURE_CC_ACI,
	AZURE_CC_AKS;
	public String toString() {
	switch(this) {
	case GCP_OIDC:
	return "gcp-oidc";
	case GCP_VMID:
	return "gcp-vmid";
	case AWS_NITRO:
	return "aws-nitro";
	case AZURE_CC_ACI:
	return "azure-cc";
	case AZURE_CC_AKS:
	return "azure-cc-aks";
	default:
	return "unknown-protocol";
	}
	}
	GCP_OIDC("gcp-oidc"),
	GCP_VMID("gcp-vmid"),
	AWS_NITRO("aws-nitro"),
	AZURE_CC_ACI("azure-cc"),
	AZURE_CC_AKS("azure-cc-aks");
	private final String value;
	Protocol(String value) {
	this.value = value;
	}
	@Override
	public String toString() {
	return this.value;
	}