feat: remove isomorphic-git dependency in favor of local git command

[ErwanRaulo]

• remove isomorphic-git dependency
• execute installed git binary to clone a repository
• format URL to handle access token

[ErwanRaulo]

i'm not sure about how i insert token in URL. I've forgot to put issue number in commit message.

[PierreDemailly]

I've forgot to put issue number in commit message.

We conventionally never put issue number in commit message so it's fine 👍 If you want to link the PR to the issue, see Linking a pull request to an issue using a keyword

[fraxken]

@allcontributors please add @orlando1108 for code

[allcontributors[bot]]

@fraxken

I've put up a pull request to add @orlando1108! :tada: