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##### SUMMARY
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`python-gitlab` library release a new version [v1.13.0](https://github.com/python-gitlab/python-gitlab/releases/tag/v1.13.0). User/Password authentication as been removed completely causing all Ansible GitLab module to fail... 

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->

gitlab_group
gitlab_deploy_key
gitlab_hook
gitlab_project
gitlab_project_variable
gitlab_runner
gitlab_user

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
All versions

argument_spec = basic_auth_argument_spec()
    argument_spec.update(dict(
        api_token=dict(type='str', no_log=True),
        state=dict(type='str', default="present", choices=["absent", "present"]),
        project=dict(type='str', required=True),
        hook_url=dict(type='str', required=True),
        push_events=dict(type='bool', default=True),
        issues_events=dict(type='bool', default=False),
        merge_requests_events=dict(type='bool', default=False),
        tag_push_events=dict(type='bool', default=False),
        note_events=dict(type='bool', default=False),
        job_events=dict(type='bool', default=False),
        pipeline_events=dict(type='bool', default=False),
        wiki_page_events=dict(type='bool', default=False),
        hook_validate_certs=dict(type='bool', default=False, aliases=['enable_ssl_verification']),
        token=dict(type='str', no_log=True),
    ))
    module = AnsibleModule(
        argument_spec=argument_spec,
        mutually_exclusive=[
            ['api_username', 'api_token'],
            ['api_password', 'api_token']
        ],
        required_together=[
            ['api_username', 'api_password']
        ],
        required_one_of=[
            ['api_username', 'api_token']
        ],