ignore error when get tags (#367)

Author: mikhail-aws

pkg/aws/cloud.go

@@ -110,7 +110,7 @@ func (c *defaultCloud) IsArnManaged(arn string) (bool, error) {
 	tagsReq := &vpclattice.ListTagsForResourceInput{ResourceArn: &arn}
 	resp, err := c.lattice.ListTagsForResource(tagsReq)
 	if err != nil {
-		return false, err
+		return false, nil
 	}
 	isManaged := c.ContainsManagedBy(resp.Tags)
 	return isManaged, nil

pkg/aws/cloud_test.go

@@ -75,7 +75,8 @@ func TestIsArnManaged(t *testing.T) {
 	t.Run("error", func(t *testing.T) {
 		lat.EXPECT().ListTagsForResource(gomock.Any()).
 			Return(nil, errors.New(":("))
-		_, err := cl.IsArnManaged("arn")
-		assert.NotNil(t, err)
+		managed, err := cl.IsArnManaged("arn")
+		assert.Nil(t, err)
+		assert.False(t, managed)
 	})
 }