ci: run workflows on Node 24

.github/dependabot.yml

@@ -12,19 +12,18 @@ updates:
       production:
         dependency-type: production
         update-types: [minor, patch]
+      # Before `development` so Vitest majors bump vitest and @vitest/* together.
+      vitest:
+        patterns: ["vitest", "@vitest/*"]
       development:
         dependency-type: development
         update-types: [minor, patch]
     ignore:
       # Pinned with PYODIDE_VERSION (runtime.ts, workerBase.ts) and index.html.
       - dependency-name: pyodide
-      # Vite 8 (Rolldown) and Vitest 5 (Node 22) need a coordinated migration.
+      # Vite 8 needs the Rolldown migration and @vitejs/plugin-react 6.
       - dependency-name: vite
         update-types: ["version-update:semver-major"]
-      - dependency-name: vitest
-        update-types: ["version-update:semver-major"]
-      - dependency-name: "@vitest/*"
-        update-types: ["version-update:semver-major"]
       - dependency-name: "@vitejs/plugin-react"
         update-types: ["version-update:semver-major"]
       # typescript-eslint caps its TypeScript peer range (<6.1.0 as of 8.71).

.github/workflows/deploy.yml

@@ -23,7 +23,7 @@ jobs:
 
       - uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 24
           cache: npm
 
       - run: npm ci

.github/workflows/perf.yml

@@ -48,7 +48,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v6
         with:
-          node-version: "20"
+          node-version: "24"
           cache: npm
 
       - name: Set up Python

.github/workflows/release.yml

@@ -80,7 +80,7 @@ jobs:
 
       - uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 24
           cache: npm
 
       - name: Install npm dependencies
@@ -114,7 +114,7 @@ jobs:
 
       - uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 24
           cache: npm
 
       - name: Install dependencies

.github/workflows/tests.yml

@@ -60,7 +60,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v6
         with:
-          node-version: "20"
+          node-version: "24"
           cache: npm
 
       - name: Install npm dependencies
@@ -93,7 +93,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v6
         with:
-          node-version: "20"
+          node-version: "24"
           cache: npm
 
       - name: Set up Python