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>

Author: dependabot[bot]

.github/workflows/main.yaml

@@ -78,7 +78,7 @@ jobs:
         run: "make codesniffer"
 
       - name: "Install Node.js"
-        uses: "actions/setup-node@v3"
+        uses: "actions/setup-node@v6"
         with:
           node-version: "${{ matrix.node-versions }}"
 
@@ -152,7 +152,7 @@ jobs:
         run: "make phpstan"
 
       - name: "Install Node.js"
-        uses: "actions/setup-node@v3"
+        uses: "actions/setup-node@v6"
         with:
           node-version: "${{ matrix.node-versions }}"