Update infrastructure deployment configuration to consume GSM secrets - k8s only

Created by: ElizabethStirling

Consume the secrets we just added to the secret manager. This issue is only for updating k8s configuration since we have a lot of secrets here, and want to break things up. We should inject the secrets into the k8s deployment as k8s secrets through a CD step, or through GitHub Actions. K8s env vars should be pulled from these secrets.

Dependencies #17809 (closed)

Useful Links: GitHub action GSM k8s env var from secret

Repository: Infrastructure