Interop Monitoring: Integrate Monitoring Service with DevStack

Devstack should have a way to utilize an Interop Monitoring Service, so that way we can design tests for the service.

See tracker: https://github.com/ethereum-optimism/optimism/issues/15178

DoD:
- Can launch a network acceptance test that includes the monitoring service
- Tests for the monitoring service exist
- (optional?) Existing tests use monitoring service for additional checks

The issue names DevStack and the network acceptance-test workflow but no files or existing test entry points. Start by locating that launch path and reviewing tracker issue #15178, then verify that a network can include the monitoring service and that monitoring-service tests run; done means the listed acceptance-test and test-coverage criteria are met.

Written by the indexing model from the issue text.