Increase loki + promtail mem limits

Closes: #1013

flux2/apps/monitoring/loki-values-configmap.yaml

@@ -9,10 +9,10 @@ data:
     resources:
       limits:
         cpu: 800m
-        memory: 1536Mi
+        memory: 2304Mi
       requests:
         cpu: 300m
-        memory: 1024Mi
+        memory: 1280Mi
     persistence:
       enabled: true
       accessModes:

flux2/apps/monitoring/promtail-values-configmap.yaml

@@ -11,10 +11,10 @@ data:
     resources:
       limits:
         cpu: 400m
-        memory: 256Mi
+        memory: 384Mi
       requests:
         cpu: 200m
-        memory: 128Mi
+        memory: 256Mi
     config:
       lokiAddress: http://loki:3100/loki/api/v1/push
       # https://github.com/grafana/helm-charts/blob/main/charts/promtail/values.yaml#L217