Bump actions/setup-node from v2-beta to v2.1.1

Bumps [actions/setup-node](https://github.com/actions/setup-node) from v2-beta to v2.1.1.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v2-beta...321b6cc)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/npm-publish.yml

@@ -11,7 +11,7 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@master
     - name: Set up Node.js
-      uses: actions/setup-node@v2-beta
+      uses: actions/setup-node@v2.1.1
       with:
         node-version: '12'
     - name: Build dist