Bump actions/setup-node from 2.5.1 to 3

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 2.5.1 to 3.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v2.5.1...v3)

---
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>

.github/workflows/audit.yml

@@ -19,7 +19,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2.4.0
 
-    - uses: actions/setup-node@v2.5.1
+    - uses: actions/setup-node@v3
       with:
         node-version: '12.x'
 

.github/workflows/test.yml

@@ -19,7 +19,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2.4.0
 
-    - uses: actions/setup-node@v2.5.1
+    - uses: actions/setup-node@v3
       with:
         node-version: '12.x'