fix(ci): persist XDG_CACHE_HOME across steps using GITHUB_ENV

Author: dedicatedbroadcastsolutions

.github/workflows/node.yaml

@@ -78,7 +78,7 @@ jobs:
           corepack enable
 
           # set isolated electron-builder cache early so downloads use it
-          echo "XDG_CACHE_HOME=${{ runner.temp }}/electron-builder-cache-${{ github.run_id }}"
+          echo "XDG_CACHE_HOME=${{ runner.temp }}/electron-builder-cache-${{ github.run_id }}" >> $GITHUB_ENV
           export XDG_CACHE_HOME=${{ runner.temp }}/electron-builder-cache-${{ github.run_id }}
           rm -rf "$XDG_CACHE_HOME/electron-builder" || true
           mkdir -p "$XDG_CACHE_HOME"