use npm token for prepublish (#741)

Author: eike-hass

.github/actions/publish/publish-stronghold-nodejs/action.yml

@@ -52,4 +52,6 @@ runs:
       env:
         NODE_AUTH_TOKEN: ${{ inputs.npm-token }}
       # will publish 'latest' tag if no tag is passed
-      run: npm publish $(if [ ${{ inputs.tag }} != '' ]; then echo --tag ${{ inputs.tag }}; fi) --access public
+      run: |
+        echo "//registry.npmjs.org/:_authToken=${{ inputs.npm-token }}" >> ~/.npmrc
+        npm publish $(if [ ${{ inputs.tag }} != '' ]; then echo --tag ${{ inputs.tag }}; fi) --access public