fix(observability): Adjusted wait handler: sometimes GetInstanceExecute returns nil for the instance

Signed-off-by: Alexander Dahmen <alexander.dahmen@inovex.de>

Author: Fyusel

services/observability/wait/wait.go

@@ -37,6 +37,9 @@ func CreateInstanceWaitHandler(ctx context.Context, a APIClientInterface, instan
 		if err != nil {
 			return false, nil, err
 		}
+		if s == nil {
+			return false, nil, nil
+		}
 		if s.Id == nil || s.Status == nil {
 			return false, nil, fmt.Errorf("could not get instance id or status from response for project %s and instance %s", projectId, instanceId)
 		}
@@ -59,6 +62,9 @@ func UpdateInstanceWaitHandler(ctx context.Context, a APIClientInterface, instan
 		if err != nil {
 			return false, nil, err
 		}
+		if s == nil {
+			return false, nil, nil
+		}
 		if s.Id == nil || s.Status == nil {
 			return false, nil, fmt.Errorf("could not get instance id or status from response for project %s and instance %s", projectId, instanceId)
 		}
@@ -82,6 +88,9 @@ func DeleteInstanceWaitHandler(ctx context.Context, a APIClientInterface, instan
 		if err != nil {
 			return false, nil, err
 		}
+		if s == nil {
+			return false, nil, nil
+		}
 		if s.Id == nil || s.Status == nil {
 			return false, nil, fmt.Errorf("could not get instance id or status from response for project %s and instance %s", projectId, instanceId)
 		}