fix(api-axios): override getUrl in AvStashApi to support get by id

[btrinhav]

Stash API only has GET by ID

[gregmartDOTin]

Is this necessary? it seems like the existing getUrl logic supports this already.

[jordan-a-young]

Instead of overriding getUrl I think we can change the way the url is built to use the existing logic. Something like

super({
      path: 'cloud/web/appl/stash',
      name: 'session/data',
      ...config,
});

This should build the desired url and pass the unit test