E2E tests: Improve E2E test runner

[josecelano]

Parent issue: #620

• Detect "panics" in logs
• Make sure the tracker configuration enables all services (UDP tracer, HTTP tracker and tracker API).

WHen you run the E2E tests:

cargo run --bin e2e_tests_runner ./share/default/config/tracker.e2e.container.sqlite3.toml

The provided configuration ./share/default/config/tracker.e2e.container.sqlite3.toml could not enable all services, or there could be a bug starting services. After starting the tracker we should check that all services are running. And at least one service per type (UDP, HTTP, HealtCheck).

We would also check that the logs don't contain any panics after starting the tracker and after stopping it.