Reactivate TableTest.test_TableColumn

This test was seemingly disabled by accident.

Author: ptziegler

org.eclipse.wb.tests/src/org/eclipse/wb/tests/designer/swt/model/widgets/TableTest.java

@@ -32,7 +32,6 @@
 import org.eclipse.swt.widgets.TableColumn;
 import org.eclipse.swt.widgets.TableItem;
 
-import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
 import java.util.List;
@@ -183,8 +182,6 @@ public Test() {
 	 * In SWT Cocoa and Linux GTK, the column headers are excluded from the client
 	 * area, hence why we have to adjust them for the tests.
 	 */
-	// Disabled because of https://github.com/eclipse-windowbuilder/windowbuilder/issues/389
-	@Disabled
 	@Test
 	public void test_TableColumn() throws Exception {
 		CompositeInfo shell = parseComposite("""