[gnome-build-meta/mcatanzaro/webkitgtk-2.28.3-gnome-3-34] Update to WebKitGTK 2.28.3

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 556f74dc17cabaddad8824ee00f6a053f932e31d
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Thu Jul 9 09:52:05 2020 -0500

    Update to WebKitGTK 2.28.3

 elements/sdk/WebKitGTK.bst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/elements/sdk/WebKitGTK.bst b/elements/sdk/WebKitGTK.bst
index 7ebf2b9f..372076d2 100644
--- a/elements/sdk/WebKitGTK.bst
+++ b/elements/sdk/WebKitGTK.bst
@@ -1,7 +1,7 @@
 kind: cmake
 sources:
 - kind: tar
-  url: webkitgtk_org:webkitgtk-2.28.2.tar.xz
+  url: webkitgtk_org:webkitgtk-2.28.3.tar.xz
   ref: b9d23525cfd8d22c37b5d964a9fe9a8ce7583042a2f8d3922e71e6bbc68c30bd
 - kind: patch
   path: files/webkitgtk/gtk-doc-introspection-cross-compiling.patch