fix(deps): bump actions/setup-node from v1 to v2.1.1

Bumps [actions/setup-node](https://github.com/actions/setup-node) from v1 to v2.1.1.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v1...321b6cc)

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

.github/workflows/shipjs-trigger.yml

@@ -16,7 +16,7 @@ jobs:
           ref: main
 
       - name: Setup node environment 📦
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2.1.1
         with:
           registry-url: "https://registry.npmjs.org"