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##### SUMMARY
<!--- Explain the problem briefly below -->

`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

changed = False
        
        if self.deployKeyObject is None:
            deployKey = self.createDeployKey(project, {
                'title': key_title,
                'key': key_key,
                'can_push': options['can_push']})
            changed = True
        else:
            changed, deployKey = self.updateDeployKey(self.deployKeyObject, {
                'can_push': options['can_push']})
        self.deployKeyObject = deployKey
        if changed:
            if self._module.check_mode:
                self._module.exit_json(changed=True, msg="Successfully created or updated the deploy key %s" % key_title)
            try:
                deployKey.save()
            except Exception as e:
                self._module.fail_json(msg="Failed to update deploy key: %s " % e)
            return True
        else:
            return False
    '''
    @param project Project Object
    @param arguments Attributes of the deployKey
    '''
    def createDeployKey(self, project, arguments):