Bump version to v0.10.3

Author: m3nu

src/vorta/_version.py

@@ -1 +1 @@
-__version__ = "0.10.2"
+__version__ = "0.10.3"

src/vorta/assets/metadata/com.borgbase.Vorta.appdata.xml

@@ -42,7 +42,7 @@
     </screenshot>
   </screenshots>
   <releases>
-    <release version="v0.10.2" date="2024-12-05" urgency="low">
+    <release version="v0.10.3" date="2024-12-23" urgency="low">
       <description>
         See Github for detailed release notes: github.com/borgbase/vorta/releases
       </description>