[tempo-distributed] PodDisruptionBudgets don't have namespace configured

[radekg]

PDBs always end up in the default namespace for tempo-distributed components.

PDBs without the namespace:

• https://github.com/grafana/helm-charts/blob/e982f8830ee54397ea59e0524828b1aa1faaacfd/charts/tempo-distributed/templates/compactor/poddisruptionbudget-compactor.yaml
• https://github.com/grafana/helm-charts/blob/e982f8830ee54397ea59e0524828b1aa1faaacfd/charts/tempo-distributed/templates/distributor/poddisruptionbudget-distributor.yaml
• https://github.com/grafana/helm-charts/blob/e982f8830ee54397ea59e0524828b1aa1faaacfd/charts/tempo-distributed/templates/enterprise-federation-frontend/poddisruptionbudget-federation-frontend.yaml
• https://github.com/grafana/helm-charts/blob/e982f8830ee54397ea59e0524828b1aa1faaacfd/charts/tempo-distributed/templates/ingester/poddisruptionbudget-ingester.yaml
• https://github.com/grafana/helm-charts/blob/e982f8830ee54397ea59e0524828b1aa1faaacfd/charts/tempo-distributed/templates/memcached/poddisruptionbudget-memcached.yaml
• https://github.com/grafana/helm-charts/blob/e982f8830ee54397ea59e0524828b1aa1faaacfd/charts/tempo-distributed/templates/metrics-generator/poddisruptionbudget-metrics-generator.yaml
• https://github.com/grafana/helm-charts/blob/e982f8830ee54397ea59e0524828b1aa1faaacfd/charts/tempo-distributed/templates/querier/poddisruptionbudget-querier.yaml
• https://github.com/grafana/helm-charts/blob/e982f8830ee54397ea59e0524828b1aa1faaacfd/charts/tempo-distributed/templates/query-frontend/poddisruptionbudget-query-frontend.yaml

This is the only PDB declaring the namespace from the release:

• https://github.com/grafana/helm-charts/blob/e982f8830ee54397ea59e0524828b1aa1faaacfd/charts/tempo-distributed/templates/gateway/poddisruptionbudget-gateway.yaml

Chart version: tempo-distributed 1.21.1.