CI: Replace Sanitizer echo with printf
requested to merge gilou/icecast-libigloo:devel-gilou-ci into devel-stjauernick-upload-libigloo-to-obs
This was tested quickly in https://gitlab.xiph.org/gilou/icecast-libigloo/-/pipelines/4933
This was tested quickly in https://gitlab.xiph.org/gilou/icecast-libigloo/-/pipelines/4933