gitmodules: use the full URL
Currently a relative URL is used, thus forking the project results in a CI failure, until you also fork the git module in your namespace.
Seems a bit off, so let's use the full URL.
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Currently a relative URL is used, thus forking the project results in a CI failure, until you also fork the git module in your namespace.
Seems a bit off, so let's use the full URL.