idl: Update the schematest hash

The only difference in the schematest comes from changing the type of the
other_config and platform fields from RW to StaticRO, which is necessary to
provide custom implementations of setters.

With a modified schematest, the diff is:

    <     "qualifier": "RW",
    ---
    >     "qualifier": "StaticRO",

Signed-off-by: Andrii Sultanov <andriy.sultanov@vates.tech>

Author: last-genius

ocaml/idl/schematest.ml

@@ -3,7 +3,7 @@ let hash x = Digest.string x |> Digest.to_hex
 (* BEWARE: if this changes, check that schema has been bumped accordingly in
    ocaml/idl/datamodel_common.ml, usually schema_minor_vsn *)
 
-let last_known_schema_hash = "87b39cf2131c990f186bb6baa6e5ece8"
+let last_known_schema_hash = "74ab53bec7861bcc9743cd8af10c0929"
 
 let current_schema_hash : string =
   let open Datamodel_types in