feat: node-arch in action.yml

Co-Authored-By: Tyler Ang-Wanek <tylerw@axosoft.com>

action.yml

@@ -7,6 +7,8 @@ inputs:
     default: 'false'
   node-version:
     description: 'Version Spec of the version to use.  Examples: 12.x, 10.15.1, >=10.15.0'
+  node-arch:
+    description: 'Target architecture for Node to use. Examples: x86, x64. Will use system architecture by default.'
   check-latest:
     description: 'Set this option if you want the action to check for the latest available version that satisfies the version spec'
     default: false