Update appcast.xml for v0.0.8-alpha

Author: actions-user

appcast.xml

@@ -6,6 +6,21 @@
     <description>Most recent updates to MACE</description>
     <language>en</language>
 
+    <item>
+      <title>Version 0.0.8-alpha</title>
+      <pubDate>Tue, 23 Dec 2025 00:55:17 +0000</pubDate>
+      <sparkle:version>008</sparkle:version>
+      <sparkle:shortVersionString>0.0.8-alpha</sparkle:shortVersionString>
+      <sparkle:minimumSystemVersion>14.0</sparkle:minimumSystemVersion>
+      <sparkle:channel>alpha</sparkle:channel>
+      <enclosure
+        url="https://github.com/MACE-App/MACE/releases/download/v0.0.8-alpha/MACE.zip"
+        length="38379291"
+        type="application/octet-stream"
+        sparkle:edSignature="38379291"
+      />
+    </item>
+
     <!-- Latest release first -->
     <item>
       <title>Version 0.0.7-alpha</title>