Bump actions/setup-node from 2 to 3.1.0

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 2 to 3.1.0.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v2...v3.1.0)

---
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/npm-publish.yml

@@ -19,7 +19,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - uses: actions/setup-node@v2
+      - uses: actions/setup-node@v3.1.0
         with:
           node-version: ${{ matrix.node }}
           registry-url: https://registry.npmjs.org/

.github/workflows/unit-tests.yml

@@ -31,7 +31,7 @@ jobs:
         uses: actions/checkout@v2
 
       - if: ${{ matrix.os == 'ubuntu-latest' || matrix.node == 14 }}
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v3.1.0
         with:
           node-version: ${{ matrix.node }}