schema: Add SQL command to alter the table 'ipsec_psk' when upgrading to 4.17 (#5668)

Co-authored-by: José Flauzino <jose@scclouds.com.br>

engine/schema/src/main/resources/META-INF/db/schema-41610to41700.sql

@@ -17,4 +17,7 @@
 
 --;
 -- Schema upgrade from 4.16.1.0 to 4.17.0.0
---;
+--;
+
+-- PR#5668 Change the type of the 'ipsec_psk' field to allow large PSK.
+ALTER TABLE cloud.remote_access_vpn MODIFY ipsec_psk text NOT NULL;