chore: remove outdated versions 1.0.21.0 and 1.0.22.0 from appcast

Author: moonrailgun

website/public/appcast.xml

@@ -70,22 +70,6 @@
             </sparkle:deltas>
             <dao:gitCommit>30ae8c3b8f0e51ca8d21533c687ce7057699ef8f</dao:gitCommit>
         </item>
-        <item>
-            <title>1.0.22.0</title>
-            <pubDate>Sun, 24 May 2026 18:04:37 +0800</pubDate>
-            <sparkle:version>22.0</sparkle:version>
-            <sparkle:shortVersionString>1.0.22.0</sparkle:shortVersionString>
-            <sparkle:minimumSystemVersion>12.0</sparkle:minimumSystemVersion>
-            <enclosure url="https://dao-release.msgbyte.com/dao-browser-1.0.22-mac-arm64.dmg" length="153929567" type="application/octet-stream" sparkle:edSignature="vcpeDS9KEI3m6vDXiVv7pZABiZ+NhUG9IujhwJocEs5BW7TW8CMu9a3fZWlefuDG96j5TdohHQmc95vJNz9UCw=="/>
-        </item>
-        <item>
-            <title>1.0.21.0</title>
-            <pubDate>Sat, 23 May 2026 10:46:05 +0800</pubDate>
-            <sparkle:version>21.0</sparkle:version>
-            <sparkle:shortVersionString>1.0.21.0</sparkle:shortVersionString>
-            <sparkle:minimumSystemVersion>12.0</sparkle:minimumSystemVersion>
-            <enclosure url="https://dao-release.msgbyte.com/dao-browser-1.0.21-mac-arm64.dmg" length="153930494" type="application/octet-stream" sparkle:edSignature="dQppEhrj/nb9wtrGXkS5ABFpLeG+nUKTqeouc/Jb6LTRhmyJFpAR/UfedEWLEiB1OMFX/S1uJaGh4qy8UZ3dAQ=="/>
-        </item>
         <item>
             <title>1.0.20.0</title>
             <pubDate>Fri, 22 May 2026 04:27:46 +0800</pubDate>
@@ -103,4 +87,4 @@
             <dao:gitCommit>3a0e6fa5ed3c5cf4015a77d0f00436ef0b26875a</dao:gitCommit>
         </item>
     </channel>
-</rss>
+</rss>