chore(github): update publish env

Author: floryst

.github/workflows/publish.yaml

@@ -3,11 +3,12 @@ on:
   push:
     branches:
       - master
+      - beta
 
 jobs:
   publish:
     name: Publish
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout
         uses: actions/checkout@v2
@@ -16,7 +17,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 18
       - name: Install dependencies
         run: npm ci
       - name: Build