roles: add SSC admin role (#60)

Adds SSC admin role to SDK
## Test plan
CI

roles/roles.go

@@ -67,9 +67,8 @@ func (r Role) Parse() (_ ParsedRole, valid bool) {
 	}, true
 }
 
+// services.Dotcom
 var (
-	// services.Dotcom
-
 	// Dotcom site admin
 	RoleDotcomSiteAdmin = ToRole(services.Dotcom, "site_admin")
 
@@ -78,6 +77,16 @@ var (
 	}
 )
 
+// services.SSC
+var (
+	// SSC admin
+	RoleSSCAdmin = ToRole(services.SSC, "admin")
+
+	sscRoles = []Role{
+		RoleSSCAdmin,
+	}
+)
+
 // AllowedRoles is a concrete list of allowed roles that can be granted to a user.
 type AllowedRoles []Role
 
@@ -91,6 +100,7 @@ func Allowed() AllowedRoles {
 	}
 
 	appendRoles(dotcomRoles)
+	appendRoles(sscRoles)
 	// 👉 ADD YOUR ROLES HERE
 
 	return allowed

roles/roles_test.go

@@ -9,7 +9,7 @@ import (
 )
 
 func TestAllowedGoldenList(t *testing.T) {
-	autogold.Expect(AllowedRoles{Role("dotcom::site_admin")}).Equal(t, Allowed())
+	autogold.Expect(AllowedRoles{Role("dotcom::site_admin"), Role("ssc::admin")}).Equal(t, Allowed())
 }
 
 func TestAllowedContains(t *testing.T) {

services/services.go

@@ -10,6 +10,7 @@ const (
 	SAMS             Service = "sams"
 	TelemetryGateway Service = "telemetry_gateway"
 	EnterprisePortal Service = "enterprise_portal"
+	SSC              Service = "ssc"
 )
 
 var serviceNames = map[Service]string{
@@ -18,6 +19,7 @@ var serviceNames = map[Service]string{
 	SAMS:             "Sourcegraph Accounts Management System",
 	TelemetryGateway: "Telemetry Gateway",
 	EnterprisePortal: "Enterprise Portal",
+	SSC:              "Self Serve Cody",
 }
 
 func (s Service) DisplayName() string {