fix(ml): error logging (#6646)

* fix ml error logging

* exclude certain libraries from traceback

machine-learning/log_conf.json

@@ -1,16 +1,15 @@
 {
   "version": 1,
-  "disable_existing_loggers": true,
-  "formatters": { "rich": { "show_path": false, "omit_repeated_times": false } },
+  "disable_existing_loggers": false,
   "handlers": {
     "console": {
-      "class": "app.config.CustomRichHandler",
-      "formatter": "rich"
+      "class": "app.config.CustomRichHandler"
     }
   },
   "loggers": {
-    "gunicorn.access": { "propagate": true },
-    "gunicorn.error": { "propagate": true }
+    "gunicorn.error": {
+      "handlers": ["console"]
+    }
   },
   "root": { "handlers": ["console"] }
 }