fix(meta): fix order when restoring metadata

[zwang28]

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What's changed and what's your intention?

#19763 didn't fix the issue correctly, since alter table set schema may result in a row of with obj_type=TABLE and schema_id > oid, which still violates the constraint FK_object_schema_id.

This PR ensures rows with obj_type=DATABASE are inserted first, then obj_type=SCHEMA, lastly others.

Checklist

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Release note