Update all GitHub Action steps to their latest version

None of these changes are really breaking.

Author: remcohaszing

.github/workflows/main.yml

@@ -5,10 +5,10 @@ jobs:
     name: test / ${{matrix.os}} / ${{matrix.node}}
     runs-on: ${{matrix.os}}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           cache: npm
           node-version: ${{matrix.node}}
@@ -30,16 +30,16 @@ jobs:
     name: full build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           cache: npm
           node-version: lts/*
       - run: npm ci
       - run: npm test
-      - uses: codecov/codecov-action@v5
+      - uses: codecov/codecov-action@v6
 name: main
 on:
   - pull_request

.github/workflows/website.yml

@@ -11,17 +11,17 @@ jobs:
     # <https://github.com/puppeteer/puppeteer/issues/12818>.
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v5
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v6
+      - uses: actions/setup-node@v6
         with:
           node-version: lts/*
       - run: npm ci
       - run: npx puppeteer browsers install chrome
       - run: npm run docs
-      - uses: actions/upload-pages-artifact@v4
+      - uses: actions/upload-pages-artifact@v5
         with:
           path: public
-      - uses: actions/deploy-pages@v4
+      - uses: actions/deploy-pages@v5
         id: deployment
 name: website
 on: