updating dev and runtime to node 20, some updates on critical libraries as well (#260)

This PR is a follow-up on the one #258. The workflows don't run when
someone is not a collaborator, so I took his change and added on to a
couple of others waiting related to security.

---------

Co-authored-by: GitHub Action <action@github.com>

Author: gagoar

.nvmrc

@@ -1 +1 @@
-16.17.0
+20.9.0

action.yml

@@ -50,5 +50,5 @@ outputs:
   response: # id of output
     description: "response from lambda invocation"
 runs:
-  using: "node16"
+  using: "node20"
   main: "dist/index.js"