chore!: require Node.js v20 instead of v18 (speced#4680)

.github/workflows/pr.yml

@@ -33,7 +33,7 @@ jobs:
           echo "::error::Uh oh! builds/ was changed."; exit 1
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
-        with: { node-version: 18, cache: pnpm }
+        with: { node-version-file: '.nvmrc', cache: pnpm }
       - run: pnpm i --frozen-lockfile
       - run: pnpm lint
 
@@ -45,7 +45,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
-        with: { node-version: 18, cache: pnpm }
+        with: { node-version-file: '.nvmrc', cache: pnpm }
       - run: pnpm i --frozen-lockfile
       - run: pnpm test:build
       - run: pnpm build:w3c
@@ -62,7 +62,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
-        with: { node-version: 18, cache: pnpm }
+        with: { node-version-file: '.nvmrc', cache: pnpm }
       - run: pnpm i --frozen-lockfile
       - run: pnpm build:w3c & pnpm build:geonovum
       - run: pnpm test:unit
@@ -80,7 +80,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
-        with: { node-version: 18, cache: pnpm }
+        with: { node-version-file: '.nvmrc', cache: pnpm }
       - run: pnpm i --frozen-lockfile
       - run: pnpm build:w3c
       - name: run validator

.github/workflows/push.yml

@@ -30,7 +30,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
-        with: { node-version: 18, cache: pnpm }
+        with: { node-version-file: '.nvmrc', cache: pnpm }
       - run: pnpm i --frozen-lockfile
       - run: pnpm build:w3c
       - run: pnpm test:headless
@@ -55,7 +55,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
-        with: { node-version: 18, cache: pnpm }
+        with: { node-version-file: '.nvmrc', cache: pnpm }
       - run: pnpm i --frozen-lockfile
       - run: pnpm build:w3c & pnpm build:geonovum
       - run: pnpm test

.github/workflows/regressions.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
-        with: { node-version: 18, cache: pnpm }
+        with: { node-version-file: '.nvmrc', cache: pnpm }
       - run: pnpm i --frozen-lockfile
       - run: pnpm build:w3c
       - uses: actions/upload-artifact@v4
@@ -44,7 +44,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
-        with: { node-version: 18, cache: pnpm }
+        with: { node-version-file: '.nvmrc', cache: pnpm }
       - run: pnpm i --frozen-lockfile
       - uses: actions/download-artifact@v4
         with:

.nvmrc

@@ -1 +1 @@
-18
+20

package.json

@@ -4,9 +4,9 @@
   "license": "W3C",
   "description": "A technical specification pre-processor.",
   "engines": {
-    "node": ">=18.14"
+    "node": ">=20.12.1"
   },
-  "packageManager": "[email protected].4",
+  "packageManager": "[email protected].6",
   "bin": {
     "respec": "tools/respec2html.js",
     "respec2html": "tools/respec2html.js"