[gnome-build-meta/alatiera/update-boost] core-deps:boost update to 1.75.0

[Jordan Petridis <jpetridis src gnome org>]

commit bfc76e238d5d830487037f593620f6da671314bf
Author: Jordan Petridis <jordan centricular com>
Date:   Tue Dec 22 03:20:47 2020 +0200

    core-deps:boost update to 1.75.0
    
    Also change the url to point to bintray, which is what the upstream
    https://www.boost.org/users/download/ webpage is using now

 elements/core-deps/boost.bst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/elements/core-deps/boost.bst b/elements/core-deps/boost.bst
index 89d46915..b3373ab0 100644
--- a/elements/core-deps/boost.bst
+++ b/elements/core-deps/boost.bst
@@ -2,7 +2,7 @@ kind: manual
 
 sources:
 - kind: tar
-  url: downloads.sourceforge.net:boost/boost/1.73.0/boost_1_73_0.tar.bz2
+  url: https://dl.bintray.com/boostorg/release/1.75.0/source/boost_1_75_0.tar.bz2
 
 depends:
 - freedesktop-sdk.bst:bootstrap-import.bst