Describe the bug
The anti affinity on loki's ingester in the chart is not specific enough.

 ingester:
  affinity:
    podAntiAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
        - labelSelector:
            matchLabels:
              app.kubernetes.io/component: ingester <- this label is not unique to Loki
          topologyKey: kubernetes.io/hostname

If mimir or tempo is installed alongside loki's ingester pods will be unable to be scheduled.

To Reproduce
Using helm:
Install mimir or tempo distributed first, then install Loki in distributed mode

Expected behavior
Loki ingester pods can be scheduled

Environment:

• Infrastructure: K8s
• Deployment tool: Helm