[gimp] libgimpwidgets: argh forgot to edit the autotools Makefile too!

[Jehan <jehanp src gnome org>]

commit e16f5bc1a1247166b2688f3e502c41be69ecbe57
Author: Jehan <jehan girinstud io>
Date:   Sat Nov 14 16:50:13 2020 +0100

    libgimpwidgets: argh forgot to edit the autotools Makefile too!

 libgimpwidgets/Makefile.gi | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/libgimpwidgets/Makefile.gi b/libgimpwidgets/Makefile.gi
index a20897e01f..0aa7104ce8 100644
--- a/libgimpwidgets/Makefile.gi
+++ b/libgimpwidgets/Makefile.gi
@@ -35,6 +35,7 @@ libgimpwidgets_introspectable_headers =       \
        ../libgimpwidgets/gimpintcombobox.h                     \
        ../libgimpwidgets/gimpintstore.h                        \
        ../libgimpwidgets/gimplabeled.h                         \
+       ../libgimpwidgets/gimplabelintwidget.h                  \
        ../libgimpwidgets/gimplabelspin.h                       \
        ../libgimpwidgets/gimpmemsizeentry.h                    \
        ../libgimpwidgets/gimpnumberpairentry.h                 \
@@ -98,6 +99,7 @@ libgimpwidgets_introspectable =       \
        ../libgimpwidgets/gimpintcombobox.c                     \
        ../libgimpwidgets/gimpintstore.c                        \
        ../libgimpwidgets/gimplabeled.c                         \
+       ../libgimpwidgets/gimplabelintwidget.c                  \
        ../libgimpwidgets/gimplabelspin.c                       \
        ../libgimpwidgets/gimpmemsizeentry.c                    \
        ../libgimpwidgets/gimpnumberpairentry.c         \