Update node 20 (#18)

Author: goruha

action.yml

@@ -31,6 +31,6 @@ inputs:
     description: "Commit status state wait for. Valid values 'success', 'error', 'failure', 'pending'"
     default: "success"
 runs:
-  using: "node16"
+  using: "node20"
   main: "index.js"