Collage content-type version missmatch

Hi folks,

I have stumbled upon a version missmatch which affects the H5P.Collage content type. The library is listed under version 0.3.20 when fetched from https://api.h5p.org/v1/sites, but when downloaded from https://api.h5p.org/v1/content-types the library.json file still shows version 0.3.17.

You can check or reproduce this using CURL:

1. curl https://api.h5p.org/v1/sites
2. curl https://api.h5p.org/v1/content-types/H5P.Collage --output collage.h5p
3. unzip collage.h5p -d H5P.Collage
4. cat H5P.Collage/H5PEditor.Collage-0.3/library.json

Please let me know if I should report this issue somewhere else.

Kind regards,