##### SUMMARY
gitlab_group contains call to Display.deprecated or AnsibleModule.deprecate and is scheduled for removal

```
lib/ansible/modules/source_control/gitlab_group.py:273:4: ansible-deprecated-version: Deprecated version ('2.10') found in call to Display.deprecated or AnsibleModule.deprecate
```

##### ISSUE TYPE
 - Bug Report

##### COMPONENT NAME
```
lib/ansible/modules/source_control/gitlab_group.py
```

##### ANSIBLE VERSION
```
2.10
```

##### CONFIGURATION
N/A

##### OS / ENVIRONMENT
N/A

##### STEPS TO REPRODUCE
N/A

##### EXPECTED RESULTS
N/A

##### ACTUAL RESULTS
N/A

changed = False
        for arg_key, arg_value in arguments.items():
            if arguments[arg_key] is not None:
                if getattr(deployKey, arg_key) != arguments[arg_key]:
                    setattr(deployKey, arg_key, arguments[arg_key])
                    changed = True
        return (changed, deployKey)
    '''
    @param project Project object
    @param key_title Title of the key
    '''
    def findDeployKey(self, project, key_title):
        deployKeys = project.keys.list()
        for deployKey in deployKeys:
            if (deployKey.title == key_title):
                return deployKey
    '''
    @param project Project object
    @param key_title Title of the key
    '''
    def existsDeployKey(self, project, key_title):