The down-cell microversion 2.69 just recently merged and it returns
links in the response for GET /servers/detail and GET /servers but not
for GET /servers/{server_id} which was an oversight because that API
returns links normally.
We should include the links key in the 'nova show' case as well and this
patch does exactly that.
Typically this would require a microversion change but given the code
merged recently and is not yet released we are just fixing this
oversight through this patch without a microversion bump.
Closes-Bug: #1818131
Change-Id: I2ce03df994f59c37b5ce3102c4e7165d17701798
a0b1951d2a