Prepare for release 43.alpha

NEWS

+Version 43.alpha
+----------------
+
+Bug fixes and improvements:
+
+ !135, Use G_DECLARE_INTERFACE in interface headers (Krifa75)
+ !136, Replace include guards with #pragma once (Krifa75, Felix Riemann)
+ #244, Window previews in shell overview are missing the title (Felix Riemann)
+
+New and updated translations:
+
+- Asier Sarasua Garmendia [eu]
+- Gianvito Cavasoli [it]
+- Temuri Doghonadze [ka]
+
+New and updated manual translations
+
+- Asier Sarasua Garmendia [eu]
+- Emin Tufan Çetin, Sabri Ünal [tr]
+
 Version 42.2
 ------------
 

data/eog.appdata.xml.in

@@ -36,6 +36,7 @@
     <kudo>UserDocs</kudo>
   </kudos>
   <releases>
+    <release version="43.alpha" date="2022-07-09" type="development" />
     <release version="42.2" date="2022-05-28">
       <description>
         <p>Eye of GNOME 42.2 is the latest stable version of Eye of GNOME, and contains all the translation updates since release 42.1.</p>