LibWeb: Fix missing tokenizer state change in RCDATALessThanSign

We can't RECONSUME_IN after we've used EMIT_CHARACTER since we'll have
returned from the function.

Libraries/LibWeb/Parser/HTMLTokenizer.cpp

@@ -1546,8 +1546,7 @@ _StartOfFunction:
                 }
                 ANYTHING_ELSE
                 {
-                    EMIT_CHARACTER('<');
+                    EMIT_CHARACTER_AND_RECONSUME_IN('<', RCDATA);
-                    RECONSUME_IN(RCDATA);
                 }
             }
             END_STATE