fix: provide NPM_AUTH_TOKEN

Author: sebjacobs

.github/workflows/ci.yml

@@ -100,6 +100,7 @@ jobs:
         working-directory: ./packages/scratch-gui
         env:
           NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }} # for publishing private npm packages
+          NPM_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }} # for viewing private npm packages
         run: |
           RELEASE_VERSION="0.1.0-experience-cs.$(date +'%Y%m%d%H%M%S')"
           npm version --no-git-tag-version $RELEASE_VERSION

packages/scratch-gui/.npmrc

@@ -0,0 +1,5 @@
+@RaspberryPiFoundation:registry=https://npm.pkg.github.com
+//npm.pkg.github.com/:_authToken=${NPM_AUTH_TOKEN}
+strict-peer-deps=true
+engine-strict=true
+loglevel=error