fix(release): scope the proxy to GitHub so the domestic channel stays direct

setGlobalDispatcher routed every request — including the Gitea release and
channel PUTs — through the local proxy, which reset mid-upload once and left
the channel half-written. The proxy agent is now passed explicitly on the
GitHub requests only.

package.json

@@ -1,7 +1,7 @@
 {
   "name": "open-terminal",
   "productName": "OpenTerminal",
-  "version": "1.0.8",
+  "version": "1.0.9",
   "description": "Open-source terminal with SSH, split panes, themes and fonts",
   "main": "out/main/index.js",
   "author": "Bill",