Add metrics-reporter-prometheus plugin checker

Change-Id: Ie21af92635f970a567bfa0d9118c0c5f4f3c586a
diff --git a/checkers.yaml b/checkers.yaml
index 47e1271..4a9976a 100644
--- a/checkers.yaml
+++ b/checkers.yaml
@@ -176,6 +176,11 @@
     name: "Zuul Check Pipeline"
     description: "Run Zuul jobs on new patchsets"
 
+  - uuid: "zuul-check:plugins_metrics-reporter-prometheus"
+    repository: "plugins/metrics-reporter-prometheus"
+    name: "Zuul Check Pipeline"
+    description: "Run Zuul jobs on new patchsets"
+
   - uuid: "zuul-check:plugins_oauth"
     repository: "plugins/oauth"
     name: "Zuul Check Pipeline"
diff --git a/zuul/main.yaml b/zuul/main.yaml
index 723cda5..50f08fa 100644
--- a/zuul/main.yaml
+++ b/zuul/main.yaml
@@ -48,6 +48,7 @@
           - plugins/menuextender
           - plugins/messageoftheday
           - plugins/metrics-reporter-jmx
+          - plugins/metrics-reporter-prometheus
           - plugins/oauth
           - plugins/project-group-structure
           - plugins/quota