feat: simplify git configs

[ferruhcihan]

Description:

This PR simplifies the process of prompting for user input and setting Git configurations in the Ansible playbook.
User needs to fill in following git credentials:

git config --global user.signingkey
git config --global user.name
git config --global user.email
git config --global github.user

[j-zimnowoda]

Hi there,
This is good start but I believe that the input should come from a file. Let's say custom.yaml. This file should be ignored by git so users do not push they config to repo.