Don't return an error if the lease is not found

If the image for the wanted platform doesn't exist then the lease
doesn't exist either. Returning this error hides the real error, so
let's not return it.

Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
(cherry picked from commit b8ff8ea58ee37d672f42e94da4d73442d8a81fc9)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

daemon/images/image.go

@@ -54,10 +54,13 @@ func (i *ImageService) PrepareSnapshot(ctx context.Context, id string, image str
 func (i *ImageService) manifestMatchesPlatform(ctx context.Context, img *image.Image, platform ocispec.Platform) (bool, error) {
 	logger := logrus.WithField("image", img.ID).WithField("desiredPlatform", platforms.Format(platform))
 
-	ls, leaseErr := i.leases.ListResources(ctx, leases.Lease{ID: imageKey(img.ID().String())})
-	if leaseErr != nil {
-		logger.WithError(leaseErr).Error("Error looking up image leases")
-		return false, leaseErr
+	ls, err := i.leases.ListResources(ctx, leases.Lease{ID: imageKey(img.ID().String())})
+	if err != nil {
+		if cerrdefs.IsNotFound(err) {
+			return false, nil
+		}
+		logger.WithError(err).Error("Error looking up image leases")
+		return false, err
 	}
 
 	// Note we are comparing against manifest lists here, which we expect to always have a CPU variant set (where applicable).