Weblate uses SSH key to access remote repositories. The corresponding public key is found below, you can use it to grant Weblate access to a repository.
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIOAXHC/t8zettf0NlNI2c8yOUKNss7hfDzLQVmdC/4Z weblate-sas-git-ssh-key