build all packages for electron tests

Author: Dan Skinner

.buildkite/basic/electron-pipeline.yml

@@ -26,7 +26,7 @@ steps:
         - echo "Running on Node `node -v`"
         - npm install electron@${ELECTRON_VERSION} --no-audit --progress=false --no-save
         - npm ci --no-audit --progress=false
-        - npm run build:electron
+        - npm run build
         - defaults write com.apple.CrashReporter DialogType none
         - npm run test:unit:electron-runner
         - npm run test:electron