[gjs/gnome-3-36] release: Prepare for 1.64.3

[Philip Chimento <pchimento src gnome org>]

commit 2b099f61dfc93529925bb117f53fcf63be76c3f7
Author: Philip Chimento <philip chimento gmail com>
Date:   Sun May 31 10:23:42 2020 -0700

    release: Prepare for 1.64.3

 NEWS | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
---
diff --git a/NEWS b/NEWS
index 873239bf..797d718f 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,26 @@
+Version 1.64.3
+--------------
+
+- Closed bugs and merge requests:
+  * arg: Don't sink GClosure ref if it's a return value [!426, Philip Chimento]
+  * overrides/Gtk: Adjust gtk_container_child_set_property() check [!431,
+    Florian Müllner]
+  * 1.63.3: test suite is failing [#298, !430, Philip Chimento]
+  * Simplify private pointers [!434, Philip Chimento]
+
+- Various backports:
+  * Use memory GSettings backend in tests [Philip Chimento]
+  * Update debug message from trimLeft/trimRight to trimStart/trimEnd [Philip
+    Chimento]
+  * Various fixes for potential crash and memory issues [Philip Chimento]
+
+Version 1.58.8
+--------------
+
+- Various backports
+  * 1.63.3: test suite is failing [Philip Chimento]
+  * Various fixes for potential crash and memory issues [Philip Chimento]
+
 Version 1.64.2
 --------------