JT400 Minor issue with resource allocated to another job

### Bug description

When JT400 test module is executed with real service and one process is reading/wring a message. The second process might get an error response `CPF2451 Message queue D_REPLMSGQ is allocated to another job`.

This allocation is released after several seconds and the test contains a nawait timeout to overcome this issue. See the [code](https://github.com/apache/camel-quarkus/blob/main/integration-tests/jt400/src/test/java/org/apache/camel/quarkus/component/jt400/it/Jt400Test.java#L43).

If you run several tests in parallel. For example using a script like:
```
for i in {1..2}
do
(mvn clean test -f integration-tests/jt400 -Dquarkus.http.test-port=808$i | sed "s/^/[Run $i] /") | tee jt400_$i.log &
done
```

and if you lower the [timeout](https://github.com/apache/camel-quarkus/blob/main/integration-tests/jt400/src/test/java/org/apache/camel/quarkus/component/jt400/it/Jt400Test.java#L43) to i.e. 2 seconds. You should see the error.

I see 2 reason of this error:

1. **Some jt400 configuration forces the timeout**
2. There is an issue in releasing the jt400 connection by camel-jt400 component. (I was checking the code, but I havem't found any problem there)

From my POV, the issue is not a major, but happens only in parallel access to one resource and the timeout is quite low.

Run the provided parallel Maven commands for integration-tests/jt400, then inspect Jt400Test.java around the nawait timeout and the JT400 test setup. Determine whether the allocation error comes from configuration or connection release; done means the cause is established and parallel runs no longer depend on the timeout workaround.

Written by the indexing model from the issue text.