Ansible Sparse Checkout

sparsecheckout.yml

---
- hosts: all
  
  vars:
    repo_url: ssh://[email protected]/user/repo.git
    base_dir: /var/www

    sparse_checkout:
      - folder1
  
  tasks:
    - name: prepare sparse git repository
      shell: |
        git init
        git config core.sparsecheckout true
        git remote add origin {{ repo_url }}
      args:
        chdir: "{{ base_dir }}"
        creates: "{{ base_dir }}/.git"

    - name: configure sparse-checkout
      copy:
        dest: "{{ base_dir }}/.git/info/sparse-checkout"
        content: '{{ sparse_checkout | join("\n") }}'

    - name: clone code
      shell: git pull origin master
      args:
        chdir: "{{ base_dir }}"
        creates: "{{ base_dir }}/{{ sparse_checkout | first }}"

It asked for username and password at "clone code" step. How to configure it so that I dont have to manually enter username and password?