Fix error in Mapper::Normalizer when CI include value type is invalid

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/142616



Merged-by: Furkan Ayhan <furkanayhn@gmail.com>
Approved-by: Rajendra Kadam <rkadam@gitlab.com>
Approved-by: Furkan Ayhan <furkanayhn@gmail.com>
Reviewed-by: Rajendra Kadam <rkadam@gitlab.com>
Co-authored-by: lma-git <lma@gitlab.com>