Update backfill date to 2018

Jira ticket: CAMS-459

backend/lib/adapters/gateways/acms/acms.gateway.ts

@@ -33,7 +33,7 @@ export class AcmsGatewayImpl extends AbstractMssqlClient implements AcmsGateway
       SELECT ((CASE_DIV * 10000000) + (CASE_YEAR * 100000) + CASE_NUMBER) AS leadCaseId
       FROM [dbo].[CMMDB]
       WHERE CASE_DIV = @divisionCode
-      AND (CLOSED_BY_COURT_DATE > 19800101 OR CLOSED_BY_UST_DATE > 19800101 OR (CLOSED_BY_COURT_DATE = 0 and CLOSED_BY_UST_DATE = 0))
+      AND (CLOSED_BY_COURT_DATE > 20180101 OR CLOSED_BY_UST_DATE > 20180101 OR (CLOSED_BY_COURT_DATE = 0 and CLOSED_BY_UST_DATE = 0))
       AND CONSOLIDATED_CASE_NUMBER = 0
       AND CONSOLIDATION_TYPE != ' '`;