Support GitHub Application login with INSTALLATION_TOKEN

[eduardodfmex]

Support GitHub Application login with JWT and ClientID.

Without use PAT.

Use an installation access token to authenticate for HTTP-based Git access. Your app must have the "Contents" repository permission. You can then use the installation access token as the HTTP password. Replace TOKEN with the installation access token: git clone https://x-access-token:TOKEN@github.com/owner/repo.git.