route: Update OWNERS

- `smarterclayton`, `pweil` and `rajatchopra` moved to emeritus approvers.
- `Miciah` added to the approvers as OpenShift Ingress&DNS architect.
- `imcsk8`,`pravisankar` removed from reviewers because they left Red Hat.
- `Miciah`, `alebedev87` and `rikatz` added as reviewers because they are
active members of OpenShift Ingress&DNS team.

Author: alebedev87

pkg/route/OWNERS

@@ -1,16 +1,16 @@
 reviewers:
-  - smarterclayton
-  - pweil-
-  - imcsk8
   - knobunc
   - ironcladlou
   - pecameron
-  - pravisankar
-  - rajatchopra
   - jacobtanenbaum
+  - Miciah
+  - alebedev87
+  - rikatz
 approvers:
-  - smarterclayton
-  - pweil-
   - knobunc
   - ironcladlou
+  - Miciah
+emeritus_approvers:
+  - smarterclayton
+  - pweil-
   - rajatchopra