ci: Ensure we have github packages setup

Author: Quenty

.github/workflows/build.yml

@@ -38,6 +38,16 @@ jobs:
         run: npm run build
         working-directory: tools/nevermore-template-helpers
 
+      - name: Setup npm for GitHub Packages
+        run: |
+          echo -e "\n//npm.pkg.github.com/:_authToken=$GITHUB_TOKEN" >> .npmrc
+          echo -e "\n//npm.pkg.github.com/:_authToken=$GITHUB_TOKEN" >> ~/.npmrc
+          echo -e "\n//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> .npmrc
+          echo -e "\n//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> ~/.npmrc
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+
       - name: Run `npm install --no-package-lock` on nevermore-cli
         run: npm install --no-package-lock
         working-directory: tools/nevermore-cli