Update bitnami/postgresql to 12.12.10

[archer-321]

Pull Request

Description of the change

This PR updates the postgresql dependency from 12.11.2 to 12.12.10 as requested by this comment. Notably, it doesn't update to 13.2.5, as major version PostgreSQL updates tend to require manual intervention, and this would require the chart to be bumped to 5.x.

Benefits

This update includes various upstream changes to the postgresql dependency.

Possible drawbacks

This is not the latest version available. However, as described above, updating to 13.x would require a major version increase.

Applicable issues

N/A

Additional information

Steps to test (copied from #​446; using minikube):

• Start a fresh cluster:
  minikube start -p nextcloud
• Clone this PR's branch:

  mkdir nextcloud-helm && cd nextcloud-helm && git init \
  && git pull --depth=1 https://github.com/nextcloud/helm.git refs/pull/446/merge:refs/heads/main
  

• Download the dependencies:
  cd charts/nextcloud && helm dep build
• Create test-values.yaml:

  cat << EOF > test-values.yaml
  ingress:
    enabled: true
  externalDatabase:
    enabled: true
    type: postgresql
    host: albacore-postgresql-0:5432
    user: nextcloud
    database: nextcloud
    existingSecret:
      enabled: false
      secretName: postgres-creds
      passwordKey: user
  internalDatabase:
    enabled: false
  postgresql:
    enabled: true
    global:
      postgresql:
        auth:
          existingSecret: postgres-creds
          secretKeys:
            adminPasswordKey: admin
            userPasswordKey: user
            replicationPasswordKey: replication
  EOF
  

• Create the secret:
  kubectl create secret generic postgres-creds --from-literal=user=foo --from-literal=replication=bar --from-literal=admin=baz --from-literal=db-username=nextcloud
• Install this PR's chart:
  helm install -f test-values.yaml albacore .
• Test the Nextcloud deployment.

Checklist

• DCO has been signed off on the commit.
• Chart version bumped in Chart.yaml according to semver.
• (optional) Variables are documented in the README.md

[jessebot]

thanks, @archer-321, this gets us a lot closer to a current version :)