routine_sequence_usage column is named sequence_catalog, not schema_catalog

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/18/infoschema-routine-sequence-usage.html
Description:

The information_schema.routine_sequence_usage page names the sequence
catalog
column "schema_catalog", but the view returns "sequence_catalog".

On PostgreSQL 16.14:

SELECT sequence_catalog
FROM information_schema.routine_sequence_usage
LIMIT 0;
-- success

SELECT schema_catalog
FROM information_schema.routine_sequence_usage
LIMIT 0;
-- ERROR: column "schema_catalog" does not exist

The REL_18_STABLE view definition also declares sequence_catalog:

https://github.com/postgres/postgres/blob/REL_18_STABLE/src/backend/catalog/information_schema.sql#L1478

The same documentation text appears in PG14 through PG19 pages. I suggest
changing schema_catalog to sequence_catalog in information_schema.sgml.