[gnome-build-meta/mcatanzaro/glibmm-2-64-1] Update glibmm-2.4 to 2.64.1

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 47d9b38d5fc2a3c33f85c6eca2d839fb043ad8c8
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Thu Mar 19 15:35:40 2020 +0100

    Update glibmm-2.4 to 2.64.1

 elements/core-deps/glibmm-2.4.bst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/elements/core-deps/glibmm-2.4.bst b/elements/core-deps/glibmm-2.4.bst
index a209a6d8..daa7c736 100644
--- a/elements/core-deps/glibmm-2.4.bst
+++ b/elements/core-deps/glibmm-2.4.bst
@@ -1,8 +1,8 @@
 kind: autotools
 sources:
 - kind: tar
-  url: gnome_downloads:glibmm/2.62/glibmm-2.62.0.tar.xz
-  ref: 36659f13cc73282392d1305858f3bbca46fbd1ce2f078cc9db8b9f79b2e93cfe
+  url: gnome_downloads:glibmm/2.64/glibmm-2.64.1.tar.xz
+  ref: aae0616c777a44a4ecf2ab74372cafbcbe14da3233fa389787d52cd4fd48c9f5
 build-depends:
 - freedesktop-sdk.bst:components/perl-xml-parser.bst
 - freedesktop-sdk.bst:public-stacks/buildsystem-autotools.bst