logs: moves statefulsets to loki mixins

[JoaoBraveCoding]

Changes

For each statefulset component we can now:

• use the components struct to specify the pvcSize
• use the components struct to specify overwrites to liveness and readiness Probes

Common to all components (compactor, index gateway, ingester and ruler)

• updateStrategy now set to RollingUpdate, shouldn't be a problem since this is the default.
• securityContext now set to 10001, since we were using loki images I'm suspecting this will also not be a problem

Compactor & Ingex Gateway

• has gossip label at the spec.template.metadata.labels level, before it didn't

Ingester

• podManagementPolicy is set to Parallel seems like something we want https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/#parallel-pod-management
• no gossip label not set at spec.selector.matchLabels
• terminationGracePeriodSeconds is set to 4800 (1h20min)

Ruler

• podManagementPolicy is set to Parallel seems like something we want https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/#parallel-pod-management
• no gossip label not set at spec.selector.matchLabels