docs: use latest release for downloads instead of pinned version

packages/console/app/src/routes/download/[channel]/[platform].ts

@@ -22,7 +22,7 @@ export async function GET({ params: { platform, channel } }: APIEvent) {
   if (!assetName) return new Response(null, { status: 404 })
 
   const resp = await fetch(
-    `https://github.com/anomalyco/${channel === "stable" ? "opencode" : "opencode-beta"}/releases/download/v1.4.3/${assetName}`,
+    `https://github.com/anomalyco/${channel === "stable" ? "opencode" : "opencode-beta"}/releases/latest/download/${assetName}`,
     {
       cf: {
         // in case gh releases has rate limits