Revert "kube-metrics-adapter: Update to version v0.2.8-14-gd0dbe73"

[tcondeixa]

Reverts #10977

This introduced some regression with kube-metrics-adapter, reverting for now and we will check in a separated PR

Summarizing 1 Failure:
  [FAIL] [zalando] [HPA] Horizontal pod autoscaling (scale resource: Custom Metrics from kube-metrics-adapter) [It] should scale down with Custom Metric of type Pod from kube-metrics-adapter [CustomMetricsAutoscaling] [Zalando]
  /workspace/test/e2e/util.go:710

[mikkeloscar]

👍

[tcondeixa]

I already created a PR if we prefer to fix instead of rollback, but let's the e2e tests finishes to have this as an option
zalando-incubator/kube-metrics-adapter#889

[tcondeixa]

👍