feature: "disabled integrations" builder for the tests

Adds the required test builder for the "disabled integrations" feature,
to make testing easier.

SANDBOX-1769

Author: MikelAlejoBR

pkg/test/config/toolchainconfig.go

@@ -300,6 +300,13 @@ func (o RegistrationServiceOption) Verification() RegistrationServiceVerificatio
 	return c
 }
 
+func (o RegistrationServiceOption) DisabledIntegrations(values []toolchainv1alpha1.IntegrationName) RegistrationServiceOption {
+	o.addFunction(func(config *toolchainv1alpha1.ToolchainConfig) {
+		config.Spec.Host.RegistrationService.DisabledIntegrations = values
+	})
+	return o
+}
+
 type RegistrationServiceAnalyticsOption struct {
 	*ToolchainConfigOptionImpl
 	parent RegistrationServiceOption