chore: update mimir rules

Author: bdossantos

rules/mimir_alerts.yml

@@ -147,7 +147,7 @@ groups:
             close to the limit."
           runbook_url: https://grafana.com/docs/mimir/latest/operators-guide/mimir-runbooks/#mimirmemorymapareastoohigh
         expr: |
-          process_memory_map_areas{job=~".*/((ingester.*|cortex|mimir|mimir-write.*)|(store-gateway.*|cortex|mimir|mimir-backend.*))"} / process_memory_map_areas_limit{job=~".*/((ingester.*|cortex|mimir|mimir-write.*)|(store-gateway.*|cortex|mimir|mimir-backend.*))"} > 0.8
+          process_memory_map_areas{job=~".*/(ingester.*|cortex|mimir|mimir-write.*|store-gateway.*|cortex|mimir|mimir-backend.*)"} / process_memory_map_areas_limit{job=~".*/(ingester.*|cortex|mimir|mimir-write.*|store-gateway.*|cortex|mimir|mimir-backend.*)"} > 0.8
         for: 5m
         labels:
           severity: critical
@@ -207,8 +207,8 @@ groups:
           runbook_url: https://grafana.com/docs/mimir/latest/operators-guide/mimir-runbooks/#mimirringmembersmismatch
         expr: |
           (
-            avg by(cluster, namespace) (sum by(cluster, namespace, instance) (cortex_ring_members{name="ingester",job=~"(.*/)?(ingester.*|cortex|mimir|mimir-write.*)"}))
-            != sum by(cluster, namespace) (up{job=~"(.*/)?(ingester.*|cortex|mimir|mimir-write.*)"})
+            avg by(cluster, namespace) (sum by(cluster, namespace, instance) (cortex_ring_members{name="ingester",job=~".*/(ingester.*|cortex|mimir|mimir-write.*)"}))
+            != sum by(cluster, namespace) (up{job=~".*/(ingester.*|cortex|mimir|mimir-write.*)"})
           )
           and
           (