Drop Node 14.x support, require Node 16+ and npm 7+ for workspaces

Co-authored-by: danmarshall <[email protected]>

Author: Copilot

.github/workflows/node.js.yml

@@ -16,8 +16,9 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x]
+        node-version: [16.x, 18.x, 20.x]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+        # npm workspaces require npm 7+, which comes with Node 15+
 
     steps:
     - uses: actions/checkout@v3

package.json

@@ -8,6 +8,10 @@
     "docs/demos",
     "packages/*"
   ],
+  "engines": {
+    "node": ">=16.0.0",
+    "npm": ">=7.0.0"
+  },
   "directories": {
     "doc": "docs"
   },