[gnome-build-meta] core-deps/ppp.bst: use https url like the one used by samba

[Abderrahim Kitouni <akitouni src gnome org>]

commit 3e945aab3d01fe07dbe7da8093cab82de71deb63
Author: Abderrahim Kitouni <akitouni gnome org>
Date:   Fri Sep 6 21:05:34 2019 +0100

    core-deps/ppp.bst: use https url like the one used by samba
    
    bst is choking because of the redirect

 elements/core-deps/ppp.bst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/elements/core-deps/ppp.bst b/elements/core-deps/ppp.bst
index 8a580a19..9e07f367 100644
--- a/elements/core-deps/ppp.bst
+++ b/elements/core-deps/ppp.bst
@@ -1,7 +1,7 @@
 kind: autotools
 sources:
 - kind: tar
-  url: http://samba.org/ftp/ppp/ppp-2.4.7.tar.gz
+  url: https://download.samba.org/pub/ppp/ppp-2.4.7.tar.gz
 - kind: patch
   path: files/ppp/use-openssl.patch
 depends: