Charts[Test] Implement smoke tests for otel-collector ports and telemetry data

## Description
We need a helm-test that ensures open-telemetry ports are working and telemetry data can be received.

## Thoughts
Currently we are running helm tests before node setup, so it is not possible to ensure actual telemetry data are received from hedera platform softwares. So we need to run mock telemetry services inside the pods for these tests; however this requires that we are using a root-container image (`full-stack-testing/ubi8-init-dind`) that has docker installed.

Some manual tests were conducted for this earlier with mock services, so we can automate those in a helm-test: https://github.com/hashgraph/full-stack-testing/pull/298

Here is an example how we can test otel-collector's functionality manually: https://github.com/hashgraph/full-stack-testing/tree/main/dev/telemetry

Review the manual test example in dev/telemetry and the approach described in full-stack-testing PR 298. Check how helm-tests run before node setup and whether full-stack-testing/ubi8-init-dind can host the mock telemetry services; done means automating checks that the OpenTelemetry ports work and telemetry data is received.

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