Enable shareProcessNamespace feature on airbyte-bootloader

[mrhovunping]

Hello,

Request for adding shareProcessNamespace on airbyte-bootloader helm chart.

We use managed db on gcloud and to secure connexion we want to use cloud-sql-proxy. airbyte-bootloader needs a connexion to db to init everything, thus, when adding the cloud-sql-proxy sidecar, the new pod doesn't complete even if airbyte-bootloader has done his part and has exited.
The idea is to add another container as sidecar that kille the cloud-sql-proxy once airbyte-bootloader is done. To kill main process of cloud-sql-proxy container, the new container-killer needs to have accessed to the shared process (https://kubernetes.io/docs/tasks/configure-pod-container/share-process-namespace/)

is it something that could be added to the helm chart?