Bumping database schema version

A new field supported_image_format and new parameters have been added for:
  - VM.migrate_send
  - VM.assert_can_migrate
  - VDI.pool_migrate

Signed-off-by: Guillaume <[email protected]>

Author: gthvn1

ocaml/idl/datamodel_common.ml

@@ -10,7 +10,7 @@ open Datamodel_roles
               to leave a gap for potential hotfixes needing to increment the schema version.*)
 let schema_major_vsn = 5
 
-let schema_minor_vsn = 791
+let schema_minor_vsn = 792
 
 (* Historical schema versions just in case this is useful later *)
 let rio_schema_major_vsn = 5