Update cloud data to latest (2026-05-12) (#17611)

* Update cloud data (2026-05-12)

* Bump

---------

Co-authored-by: Rancher Dashboard Cloud Data Bot <rancherdashboardbot@suse.com>
Co-authored-by: Neil MacDougall <neil_macdougall@hotmail.com>

Author: 3 people

shell/assets/data/aws-regions.json

@@ -38,6 +38,9 @@
   "us-iso-east-1",
   "us-iso-west-1",
   "us-isob-east-1",
+  "us-isob-west-1",
+  "us-isof-east-1",
+  "us-isof-south-1",
   "us-west-1",
   "us-west-2"
 ]