The model can be used for any projects where it's suitable but credit must be stated on where the model came from. You can find credit information in the details section :)
Ok CC-BY fits your needs https://creativecommons.org/about/cclicenses/
Consider to use it
You can leave a comment here to support my proposal about making metadata visible for those who are interested in it https://itch.io/t/2919128/metadata-encouragement#post-7952450