Fix CI: Test Containers Connection Refused: Producer App

[cicoyle]

https://github.com/dapr/java-sdk/actions/runs/15007575836/job/42169859611?pr=1343#step:21:4366

grep logs for Failed to listen for gRPC server on TCP address :48832 with error: listen tcp :48832: bind: address already in use

cc @salaboy this is causing issues in CI

[salaboy]

@cicoyle that looks like a clash on random ports, which should be very strange, was that issue consistent for multiple runs?