Upload file to git repository

Hello folks,

total noob here.

The problem I’m having

I am using a dbt account and working in dbt-cloud. I can find a deploy key and the address of the git repository. How do I upload a file there? The problem is I could not add the file with seeds since it was too big. I hope I can clone it to the affected repository but git clone does not work because of denied access.

Some example code or error messages

git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.