Update versions of release workflow and build typescript before doing a release

Author: hlxid

.github/workflows/release.yml

@@ -1,21 +1,27 @@
 name: Release
+
 on:
   push:
     branches:
       - master
+
 jobs:
   release:
     name: Release
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout
         uses: actions/checkout@v1
       - name: Setup Node.js
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
+
       - name: Install dependencies
         run: npm ci
+      - name: Build
+        run: npm run build
+
       - name: Release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}