Merge pull request kubernetes#77621 from logicalhan/add-metrics-owners

add sig-instrumentation to owners in component-base/metrics

Author: k8s-ci-robot

staging/src/k8s.io/component-base/metrics/OWNERS

@@ -0,0 +1,9 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+approvers:
+- piosz
+- brancz
+reviewers:
+- sig-instrumentation-pr-reviews
+labels:
+- sig/instrumentation