Make sure we're compairing strings when getting images in the DO driver
Make sure we're compairing strings when getting images in the DO driver

For example, FreeBSD's "name" from DO is 10.2. This gets converted to
a float from the cloud config (if it's not wrapped in quotes). Later,
we look for this value in data from DO, which are strings.

Fixes #28227

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt