chore(deps): bump actions/setup-node from 1 to 2.4.1

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 1 to 2.4.1.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v1...v2.4.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/ci.yaml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2.4.1
         with:
           node-version: '12'
       - name: Cache node modules