[librsvg/librsvg-2.50] Update NEWS

[Federico Mena Quintero <federico src gnome org>]

commit 6ca387974e6a3e248c261d3dac15b8d4a742d3aa
Author: Federico Mena Quintero <federico gnome org>
Date:   Fri Jun 4 19:10:57 2021 -0500

    Update NEWS

 NEWS | 10 ++++++++++
 1 file changed, 10 insertions(+)
---
diff --git a/NEWS b/NEWS
index 970d9fe3..6961ab9b 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,13 @@
+==============
+Version 2.50.7
+==============
+
+Two cairo-related bug fixes:
+
+- #745 - Fix mismatched cairo_save/restore when running in inside the Cairo test suite.
+- #746 - Possible cairo_save() without cairo_restore() in render_layer().
+
+
 ==============
 Version 2.50.6
 ==============