Mark step and side state inline

If we dont do this, then with dynamic client or using
unstructured to unsmarshal, these structs are resulting
in empty/nil values

Author: piyush-garg

pkg/apis/pipeline/v1beta1/taskrun_types.go

@@ -220,18 +220,18 @@ func (trs *TaskRunStatus) SetCondition(newCond *apis.Condition) {
 
 // StepState reports the results of running a step in a Task.
 type StepState struct {
-	corev1.ContainerState
-	Name          string `json:"name,omitempty"`
-	ContainerName string `json:"container,omitempty"`
-	ImageID       string `json:"imageID,omitempty"`
+	corev1.ContainerState `json:",inline"`
+	Name                  string `json:"name,omitempty"`
+	ContainerName         string `json:"container,omitempty"`
+	ImageID               string `json:"imageID,omitempty"`
 }
 
 // SidecarState reports the results of running a sidecar in a Task.
 type SidecarState struct {
-	corev1.ContainerState
-	Name          string `json:"name,omitempty"`
-	ContainerName string `json:"container,omitempty"`
-	ImageID       string `json:"imageID,omitempty"`
+	corev1.ContainerState `json:",inline"`
+	Name                  string `json:"name,omitempty"`
+	ContainerName         string `json:"container,omitempty"`
+	ImageID               string `json:"imageID,omitempty"`
 }
 
 // CloudEventDelivery is the target of a cloud event along with the state of