Update appcast.xml

Author: intitni

appcast.xml

@@ -3,6 +3,18 @@
   <channel>
     <title>Copilot for Xcode</title>
 
+    <item>
+      <title>0.19.0</title>
+      <pubDate>Sat, 24 Jun 2023 00:44:54 +0800</pubDate>
+      <sparkle:version>190</sparkle:version>
+      <sparkle:shortVersionString>0.19.0</sparkle:shortVersionString>
+      <sparkle:minimumSystemVersion>12.0</sparkle:minimumSystemVersion>
+      <sparkle:releaseNotesLink>
+        https://github.com/intitni/CopilotForXcode/releases/tag/0.19.0
+      </sparkle:releaseNotesLink>
+      <enclosure url="https://github.com/intitni/CopilotForXcode/releases/download/0.19.0/Copilot.for.Xcode.app.zip" length="19517450" type="application/octet-stream" sparkle:edSignature="K/Hlpvw3EOmD8HZ+zEEUqKQCe+tacydXQSgMfdVeq2YAIMPXXunTk6vF7Q25KktmzFuALMC13PM+eDw/LNhzDw=="/>
+    </item>
+
     <item>
       <title>0.18.2</title>
       <pubDate>Wed, 14 Jun 2023 18:45:02 +0800</pubDate>