* Add workstation configuration
These are prebuilt docker images for spinning up a local self-hosted
image on the Google Cloud Workstation project. While primarily intended
for internal development at Sentry, in theory these can be used by
anyone with GCWS project to create a fresh workstation for developing
self-hosted via a remote VSCode connection.
Users who have GCWS properly configured will be able to use the
forthcoming `workstations ...` command in the `sentry` dev CLI to
create, manage, and destroy one-off or long-lived workstations in either
the pre-install or post-install configuration.
Note that the `sentry workstations ...` CLI has not yet landed in the
`sentry` repo - those changes are coming soon!
Issue: getsentry/team-ospo#240
* Fix shfmt complaints
