[chore][receiver/k8scluster] introduce delay in E2E test to avoid flakyness#39422

andrzej-stencel merged 2 commits intoopen-telemetry:mainopen-telemetry/opentelemetry-collector-contrib:mainfrom

odubajDT:k8sclusterreceiver-flaky-testodubajDT/opentelemetry-collector-contrib:k8sclusterreceiver-flaky-testCopy head branch name to clipboard