Missing SSH on pipeline

[michaelw85]

The ssh method is missing on the pipelines namespace.

Expected:

new Client()->repositories()->workspaces('xyz')->pipelines('repo')->ssh()->keyPair()->...

Actual:

Work around:

use Bitbucket\Api\Repositories\Workspaces\PipelinesConfig\Ssh;

new Ssh($client, 'workspace', 'repo')->keyPair()->...etc