Drop support for Node before v20

These versions seem to be broken in CI, and they're unsupported anyway,
so it's time to jump forwards a bit.

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x, 20.x, v20.8.0, 22.x]
+        node-version: [20.x, v20.18.1, 22.x, 23.x]
 
     steps:
       - uses: actions/checkout@v3
@@ -26,9 +26,9 @@ jobs:
           NODE_OPTIONS: ${{ matrix.node-version == '22.x' && '--experimental-require-module' || '' }}
 
       - name: Deploy docs
-        if: github.ref == 'refs/heads/main' && matrix.node-version == 'v20.8.0'
+        if: github.ref == 'refs/heads/main' && matrix.node-version == 'v20.18.1'
         uses: JamesIves/[email protected]
         with:
           single-commit: true
           branch: gh-pages
-          folder: typedoc
+          folder: typedoc

package.json

@@ -44,7 +44,7 @@
   },
   "homepage": "https://github.com/httptoolkit/mockrtc#readme",
   "engines": {
-    "node": ">=14.17.0"
+    "node": ">=20.0.0"
   },
   "devDependencies": {
     "@esbuild-plugins/node-globals-polyfill": "^0.1.1",