Add Service Account Config to Scorecard (#153)

* add SA field to config

Signed-off-by: Ish Shah <ishah@redhat.com>

* Update pkg/apis/scorecard/v1alpha3/configuration_types.go

Co-authored-by: Joe Lanford <joe.lanford@gmail.com>

Co-authored-by: Joe Lanford <joe.lanford@gmail.com>

pkg/apis/scorecard/v1alpha3/configuration_types.go

@@ -22,6 +22,9 @@ type Configuration struct {
 
 	// Storage is the optional storage configuration
 	Storage Storage `json:"storage,omitempty" yaml:"storage,omitempty"`
+
+	// ServiceAccount is the service account under which scorecard tests are run. This field is optional. If left unset, the `default` service account will be used.
+	ServiceAccount string `json:"string,omitempty" yaml:"string,omitempty"`
 }
 
 // StageConfiguration configures a set of tests to be run.