[prometheus] Add missing data sources for status

Bug: skia:
Change-Id: I5afe72843cf905c2174f6bdcc086329793103e02
Reviewed-on: https://skia-review.googlesource.com/c/178861
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Eric Boren <borenet@google.com>
diff --git a/prometheus/sys/prometheus.yml b/prometheus/sys/prometheus.yml
index 91d2ae3..3bee09a 100644
--- a/prometheus/sys/prometheus.yml
+++ b/prometheus/sys/prometheus.yml
@@ -99,6 +99,7 @@
     static_configs:
       - targets: ['skia-status:20000']
       - targets: ['skia-status-internal:20000']
+      - targets: ['skia-status-staging:20000']
 
   - job_name: 'task_scheduler'
     static_configs:
@@ -142,6 +143,8 @@
       - targets: ['skia-skfe-1:11000']
       - targets: ['skia-skfe-2:11000']
       - targets: ['skia-status:11000']
+      - targets: ['skia-status-internal:11000']
+      - targets: ['skia-status-staging:11000']
       - targets: ['skia-task-scheduler-internal:11000']
       - targets: ['skia-task-scheduler-staging:11000']
       - targets: ['skia-task-scheduler:11000']