Possible data race during deletion of logs

[fedinskiy]

When running tests without ts.global.delete.folder.on.exit=false option I sometimes see a warning "Exception when reading file log" and after some debugging, it turns out, that this is due to attempt to read log file of Quarkus application after it was removed by our framework.

I noticed this behavior while working on Infinispan tests where Inifispan container was started by podman, probably this added some additional latency.

Reproducer:

1. git clone git@github.com:fedinskiy/quarkus-test-suite.git -b reproducer/infinispan && cd quarkus-test-suite
2. mvn clean verify -pl messaging/infinispan-grpc-kafka/ -Dit.test=InfinispanKafkaIT # there is a warning in logs . Debugging shows, that underlying issue is java.nio.file.NoSuchFileException: target/InfinispanKafkaIT/app/out.log
3. mvn clean verify -pl messaging/infinispan-grpc-kafka/ -Dit.test=InfinispanKafkaIT -Dts.global.delete.folder.on.exit=false # no warning

Warning originates from files quarkus-test-core/src/main/java/io/quarkus/test/logging/FileServiceLoggingHandler.java, but there is similar code in quarkus-test-core/src/main/java/io/quarkus/test/logging/FileLoggingHandler.java

I am not sure, whether this causes some tests to fail, but I cannot rule this possibility out either.
In addition, it would be nice to add information about file and exception to the warning.