detect: config keyword transaction logic fix

When the keyword config:logging disable,type tx is used,
OutputTxLog checks a flag to skip the transaction without logging
it, but AppLayerParserTransactionsCleanup waits for the
transaction to be marked as logged to clean it.

So, OutputTxLog now marks the tx as logged, so that it can
get cleaned away.

Ticket: #5456
(cherry picked from commit 0c0fcc9411)

src/output-tx.c

@@ -225,6 +225,8 @@ static TmEcode OutputTxLog(ThreadVars *tv, Packet *p, void *thread_data)
         SCLogDebug("tx %p/%"PRIu64" txd %p: log_flags %x", tx, tx_id, txd, txd->config.log_flags);
         if (txd->config.log_flags & BIT_U8(CONFIG_TYPE_TX)) {
             SCLogDebug("SKIP tx %p/%"PRIu64, tx, tx_id);
+            // so that AppLayerParserTransactionsCleanup can clean this tx
+            txd->logged.flags |= logger_expectation;
             goto next_tx;
         }