Add integration test for OTLP internal metrics #2058
+171
−16
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In Alloy v1.4.0 some Otel metrics were renamed but we forgot to rename them in the k8s-monitoring helm-chart. This broke some user dashboards. (see grafana/k8s-monitoring-helm#840)
This test will ensure that the internal otel metrics are available.
It's also adding traces to the otel gen app + tempo in the docker compose. This is helpful when setting up a local lab to test configs.