[Stream Fix] Remove escaped quotation mark from valid_name list (#14941)

Remove escaped quotation character in CLI datafactory string

(cherry picked from commit bba4931)

robottelo/utils/datafactory.py

@@ -390,7 +390,7 @@ def valid_names_list():
         f"νέος χρήστης-{gen_string('utf8', 2)}",
         f"foo@!#$^&*( ) {gen_string('utf8')}",
         f"<blink>{gen_string('utf8')}</blink>",
-        f"bar+{{}}|\"?hi {gen_string('utf8')}",
+        f"bar+{{}}|?hi {gen_string('utf8')}",
         f" {gen_string('utf8')}",
         f"{gen_string('utf8')} ",
     ]