build(deps): bump actions/setup-node from 3 to 4 (#6002)

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 3 to 4.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](https://github.com/actions/setup-node/compare/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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/backend-tests.yml

@@ -24,7 +24,7 @@ jobs:
         name: Checkout repository
         uses: actions/checkout@v4
       -
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}
           cache: 'npm'
@@ -61,7 +61,7 @@ jobs:
         name: Checkout repository
         uses: actions/checkout@v4
       -
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}
           cache: 'npm'
@@ -122,7 +122,7 @@ jobs:
         name: Checkout repository
         uses: actions/checkout@v4
       -
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: 20
           cache: 'npm'
@@ -155,7 +155,7 @@ jobs:
         name: Checkout repository
         uses: actions/checkout@v4
       -
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: 20
           cache: 'npm'