[calls] debian: Install manpage

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit 35eebcbfe775dcc465306d496104580cf1a65143
Author: Evangelos Ribeiro Tzaras <devrtz fortysixandtwo eu>
Date:   Tue May 31 16:56:49 2022 +0200

    debian: Install manpage

 debian/gnome-calls.install | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/debian/gnome-calls.install b/debian/gnome-calls.install
index f3d2dc9b..ec79fad2 100644
--- a/debian/gnome-calls.install
+++ b/debian/gnome-calls.install
@@ -6,3 +6,4 @@
 /usr/share/icons
 /usr/share/locale
 /usr/share/metainfo
+/usr/share/man