[gnome-builder] build: bump copyright years

[Christian Hergert <chergert src gnome org>]

commit f9ef64989b911479456270d7feeaf66f6ab0e353
Author: Christian Hergert <chergert redhat com>
Date:   Thu Feb 18 13:14:29 2021 -0800

    build: bump copyright years

 src/libide/gui/ide-application-actions.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/libide/gui/ide-application-actions.c b/src/libide/gui/ide-application-actions.c
index 35b819db6..5f46c581c 100644
--- a/src/libide/gui/ide-application-actions.c
+++ b/src/libide/gui/ide-application-actions.c
@@ -141,7 +141,7 @@ ide_application_actions_about (GSimpleAction *action,
                          "artists", ide_application_credits_artists,
                          "authors", ide_application_credits_authors,
                          "comments", _("An IDE for GNOME"),
-                         "copyright", "© 2014–2019 Christian Hergert, et al.",
+                         "copyright", "© 2014–2021 Christian Hergert, et al.",
                          "documenters", ide_application_credits_documenters,
                          "license-type", GTK_LICENSE_GPL_3_0,
                          "logo-icon-name", "org.gnome.Builder",