Fix hard code of 1Mi (#552)

api/v1beta1/common_types.go

api/v1beta1/rediscluster_types.go

api/v1beta1/zz_generated.deepcopy.go

...g/crd/bases/redis.redis.opstreelabs.in_redisclusters.yaml

example/acl_config/cluster.yaml

example/additional_config/clusterd.yaml

example/advance_config/clusterd.yaml

example/affinity/clusterd.yaml

example/disruption_budget/clusterd.yaml

example/external_service/clusterd.yaml

example/node-selector/clusterd.yaml

example/password_protected/clusterd.yaml

example/private_registry/clusterd.yaml

example/probes/clusterd.yaml

example/recreate-statefulset/clusterd.yaml

example/redis-cluster.yaml

example/redis_monitoring/clusterd.yaml

example/tls_enabled/redis-cluster.yaml

example/tolerations/clusterd.yaml

example/upgrade-strategy/clusterd.yaml