GPencil: Fix unreported Bake animation error

This bug was introduced in commit https://developer.blender.org/rB5188c14718c56e4d088d3c5bb3ce3ed9ed8b7bdc because the object transform was not applied when baking the object.

Thanks to @frogstomp for the head up.

source/blender/editors/gpencil/gpencil_bake_animation.cc

@@ -320,6 +320,7 @@ static int gpencil_bake_grease_pencil_animation_exec(bContext *C, wmOperator *op
           /* Update point location to new object space. */
           for (int j = 0; j < gps->totpoints; j++) {
             bGPDspoint *pt = &gps->points[j];
+            mul_m4_v3(ob_eval->obmat, &pt->x);
             mul_m4_v3(invmat, &pt->x);
           }