Feature: helm subchart update should upgrade Helmrelease

[avdhoot]

Our use case is when app or job sub chart updated. Helmrelease should reconcile & deploy app with new sub chart.

dependencies:
- name: app
  version: ~1
  repository: s3://foo-helm/master
  condition: app.enabled
- name: job
  version: ~1
  repository: s3://foo-helm/master
  condition: celery-worker.enabled
  alias: celery-worker
- name: job
  version: ~1
  repository: s3://foo-helm/master
  condition: celery-beat.enabled
  alias: celery-beat
- name: job
  version: ~1
  repository: s3://foo-helm/master
  condition: kafka-consumer.enabled
  alias: kafka-consumer
- name: operators
  version: ~1
  repository: s3://foo-helm/master
  condition: operators.enabled

Similar request : https://github.com/fluxcd/flux/issues/2711