chore: add node 20 to CI checks (#518)

Author: jeswr

.github/workflows/bundlers.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [12.x, 14.x, 16.x, 18.x]
+        node-version: [12.x, 14.x, 16.x, 18.x, 20.x]
         bundler: ['browserify', 'esbuild', 'rollup', 'webpack']
     steps:
       - name: Checkout

.github/workflows/node.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [12.x, 14.x, 16.x, 18.x]
+        node-version: [12.x, 14.x, 16.x, 18.x, 20.x]
     steps:
       - name: Checkout
         uses: actions/checkout@v3