Update appdata file for 2.0.9.8

Author: mirkobrombin

data/com.usebottles.bottles.appdata.xml.in

@@ -117,6 +117,15 @@
     <url type="bugtracker">https://github.com/bottlesdevs/Bottles/issues</url>
     <url type="help">https://docs.usebottles.com</url>
     <releases>
+        <release version="2.0.9.8" date="2020-01-09">
+            <description>
+              <p>Bugfix:</p>
+              <ul>
+                <li>Proposed a fix that should resolve the execution of executables on Flatpak</li>
+                <li>The window can now be resized</li>
+              </ul>
+            </description>
+        </release>
         <release version="2.0.9.7" date="2020-01-07">
             <description>
               <p>News:</p>