[desktop] Don't invoke electron-builder twice on CI

desktop/.github/workflows/desktop-release.yml

@@ -58,6 +58,7 @@ jobs:
               uses: ente-io/action-electron-builder@v1.0.0
               with:
                   package_root: desktop
+                  build_script_name: build:ci
 
                   # GitHub token, automatically provided to the action
                   # (No need to define this secret in the repo settings)

desktop/package.json

@@ -8,6 +8,7 @@
     "main": "app/main.js",
     "scripts": {
         "build": "yarn build-renderer && yarn build-main",
+        "build:ci": "yarn build-renderer && tsc",
         "build-main": "tsc && electron-builder",
         "build-main:quick": "tsc && electron-builder --dir --config.compression=store --config.mac.identity=null",
         "build-renderer": "cd ../web && yarn install && yarn build:photos && cd ../desktop && shx rm -f out && shx ln -sf ../web/apps/photos/out out",