CORE-20138: Add more logging to aid debugging of flaky key rotation tests

[anien]

[corda-jenkins-ci02[bot]]

Jenkins build for PR 6094 build 2

Build Successful: Jar artifact version produced by this PR: 5.3.0.0-alpha-1714577318288 Helm chart version produced by this PR: 5.3.0-alpha.1714577318288 Helm chart pushed to: oci://corda-os-docker-dev.software.r3.com/helm-charts/pr-6094/corda Helm chart Polaris score: 82

[sonarqubecloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[anien]

Closing this PR as we believe we have found the issue causing flakiness of key rotation tests.