Fix test release commands to work with older GPG.
Fix test release commands to work with older GPG.

The --quick-generate-key command wasn't added until recently.

PiperOrigin-RevId: 314570297

google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor