BUG: Fix pd.show_versions as_json invalid JSON (pandas-dev#39701)

Author: alexprincel

pandas/util/_print_versions.py

@@ -107,7 +107,7 @@ def show_versions(as_json: Union[str, bool] = False) -> None:
         j = {"system": sys_info, "dependencies": deps}
 
         if as_json is True:
-            print(j)
+            print(json.dumps(j))
         else:
             assert isinstance(as_json, str)  # needed for mypy
             with codecs.open(as_json, "wb", encoding="utf8") as f: