no-jira: add missing database update script

src/main/java/org/olat/upgrade/_spring/databaseUpgradeContext.xml

@@ -216,6 +216,10 @@
 					<constructor-arg index="0" value="OLAT_15.pre.0" />
 					<property name="alterDbStatements" value="alter_14_2_x_to_15_pre_0.sql" />
 				</bean>
+				<bean id="database_upgrade_15_pre_3" class="org.olat.upgrade.DatabaseUpgrade">
+					<constructor-arg index="0" value="OLAT_15.pre.3" />
+					<property name="alterDbStatements" value="alter_15_pre_0_to_15_pre_3.sql" />
+				</bean>
 			</list>
 		</property>
 	</bean>