Update checkout action for newer Node.js

https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12

Author: brianhlin

action.yml

@@ -78,7 +78,7 @@ outputs:
 runs:
   using: "composite"
   steps:
-  - uses: actions/checkout@v2
+  - uses: actions/checkout@v3
 
   - name: Check input requirements
     if: >-