fix (workflow): changing directory in publish step

.github/workflows/build-and-publish.yml

@@ -24,6 +24,6 @@ jobs:
           node-version: '12.x'
           registry-url: 'https://registry.npmjs.org'
       - name: Publish
-        run: npm publish
+        run: cd lib && npm publish
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}