Modified authority.indexing_ingest_or_delete to update MARC data

Modified authority.indexing_ingest_or_delete to update MARC data

The authority.indexing_ingest_or_delete trigger in the update script
was missing a call to authority.propagate_changes which is responsible
for updating the MARC data of records affected by an auhtority merge.
This patch adds the call to authority.propagate_changes as it appears
in the authority.indexing_ingest_or_delete trigger from the file
999.functions.global.sql.

Signed-off-by: Liam Whalen <lwhalen@nrcan-rncan.gc.ca>
Signed-off-by: Dan Scott <dscott@laurentian.ca>