feat: Using OpenShift routes for integration tests

[hamza-m-masood]

Which problem does the PR fix?

related issue: https://github.com/camunda/distribution/issues/254

What's in this PR?

Modifying integration tests to use OpenShift routes.

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[hamza-m-masood]

@aabouzaid I am finished with this values.yaml for OpenShift but I don't know how to incorporate it in our CI. There are three problems:

1. OpenShift routes operator is not currently working in our CI
2. I have hardcoded the namespace in the broker contact-point env vars. The name of the hardcoded namespace is test-ns
3. Within the controller config, there is a secret referenced called keystore. I have to run a number of manual tasks in order to create this secret, listed here: https://github.com/camunda/distribution/issues/254#issuecomment-2192839213

Once these 3 problems are solved, we can incorporate routes in our CI.

[aabouzaid]

@hamza-m-masood Let's sync about this PR to ensure it's in the correct shape.