[gnome-builder] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 98e317d89b0140d3c854cb540a9c2950677bd810
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Jul 4 17:54:49 2021 +0200

    Update POTFILES.in

 po/POTFILES.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index a40e5c692..68d13e9c8 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -324,6 +324,7 @@ src/plugins/newcomers/gbp-newcomers-section.ui
 src/plugins/notification/ide-notification-addin.c
 src/plugins/npm/npm_plugin.py
 src/plugins/omni-gutter/gbp-omni-gutter-renderer.c
+src/plugins/open-with-external/gtk/menus.ui
 src/plugins/phpize/phpize_plugin.py
 src/plugins/podman/gbp-podman-runtime.c
 src/plugins/project-tree/gbp-new-file-popover.c