Use node 14 and not node 12 to publish package (#529)

Author: bidoubiwa

.github/workflows/publish.yml

@@ -10,7 +10,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 12
+          node-version: 14
           registry-url: https://registry.npmjs.org/
       - name: Check release validity
         run: sh .github/scripts/check-release.sh