update docs

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: jhheider

action.yml

@@ -22,5 +22,5 @@ inputs:
     required: false
     default: ^2
 runs:
-  using: node24
+  using: node20
   main: ./action.js