Google Cloud CLI 588.0.0 is now available

[cloud-sdk...@google.com]

Hi all,

Google Cloud CLI 588.0.0 is now available for download at:
https://developers.google.com/cloud/sdk/

Release notes can be found here:
https://cloud.google.com/sdk/docs/release-notes#588.0.0

As always, please let us know of any issues or feedback you may have via
our issue tracker:
<https://issuetracker.google.com/issues/new?component=187143>.