chore: bump actions/setup-node from 3 to 4

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 3 to 4.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v3...v4)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/deploy-gh-pages.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-    - uses: actions/setup-node@v3
+    - uses: actions/setup-node@v4
       with:
         node-version: '12'
         cache: 'yarn'

.github/workflows/lint-and-test.yml

@@ -14,7 +14,7 @@ jobs:
     - uses: actions/checkout@v3
 
     # https://github.com/actions/setup-node
-    - uses: actions/setup-node@v3
+    - uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.nodejs }}