Restore correct configuration for UTCTest (hibernate#1251)

Author: DavideD

hibernate-reactive-core/src/test/java/org/hibernate/reactive/UTCTest.java

@@ -25,6 +25,8 @@
 import javax.persistence.GeneratedValue;
 import javax.persistence.Id;
 
+import org.hibernate.cfg.AvailableSettings;
+import org.hibernate.cfg.Configuration;
 
 import org.junit.Test;
 
@@ -39,6 +41,13 @@ protected Collection<Class<?>> annotatedEntities() {
 		return List.of( Thing.class );
 	}
 
+	@Override
+	protected Configuration constructConfiguration() {
+		final Configuration configuration = super.constructConfiguration();
+		configuration.setProperty( AvailableSettings.JDBC_TIME_ZONE, "UTC" );
+		return configuration;
+	}
+
 	@Test
 	public void testDate(TestContext context) {
 		thing.date = Calendar.getInstance( TimeZone.getTimeZone( "UTC" ) )