[bitnami/grafana-operator] Update the grafana-operator chart to version 4.x release.

[Cellebyte]

Description of the change

It updates the CRD's from the project and the operator to the v4.0.x release.

Benefits

Better validation of the CRD Resources via API-Server and third-party tools.
Reduced rbac roles.
Leader Election for better HA support of the operator.

Possible drawbacks

Applicable issues

• Fixes [bitnami/grafana-operator] Add support for Kubernetes 1.22+ #7704
• Waits for the following Pull Requests
  • Feature/grafana8 unified alerting grafana/grafana-operator#559
  • Forwardport from grafana-operator v3 the json data field implementation for Alertmanager Datasource. grafana/grafana-operator#601
  • https://github.com/bitnami/bitnami-docker-grafana/issues/17
• Incorporates the changes of [bitnami/grafana-operator] New major version #7896
• Incorporates the changes of [bitnami/grafana-operator]: feat!: 💥 Adapt to new standardizations #8513
• Fixes Change K8s API from apiextensions.k8s.io/v1beta1 to apiextensions.k8s.io/v1 #8333

Additional information

Checklist

• Chart version bumped in Chart.yaml according to semver.
• Variables are documented in the README.md
• Title of the PR starts with chart name (e.g. [bitnami/<name_of_the_chart>])

[github-actions]

Great PR! Please pay attention to the following items before merging:

Files matching bitnami/*/values.yaml:

• Is the PR adding a new container? Please reviewer, add it to the models (internal process)
• Is the PR adding a new parameter? Please, ensure it’s documented in the README.md

This is an automatically generated QA checklist based on modified files

[carrodher]

Hi @Cellebyte, is this PR ready for review, or are you planning more tests/changes on your side? I'm asking because of the DRAFT: that appears in the title. Feel free to ping me once it is ready for review. Thanks!

[Cellebyte]

@carrodher we still need to wait until the upstream changes are implemented.
Then build a new operator version and then bump it here and merge it. I will notify here when it is time to review and merge it.

[carrodher]

Thanks for the changes @Cellebyte, I just pinged @juan131 in a related PR he already created (see above link) so you can work together if needed

[Cellebyte]

@carrodher I already added a comment with a clarification from my perspective what makes more sense.

[juan131]

@joancafom are we ready to go with this?

[Cellebyte]

@juan131 please do not merge until we have fixed the grafana image :D

[javsalgar]

@Cellebyte could you try merging the changes I added in this PR so we don't bump the chart twice? #8513

[Cellebyte]

@javsalgar will do that :)

[Cellebyte]

@javsalgar could you regenerate the readme from the new values.yaml file.

[javsalgar]

@Cellebyte updated

[javsalgar]

@Cellebyte I want to launch our automated test suite and, in case it succeeds, proceed with the automatic merge, any blockers?

[Cellebyte]

@javsalgar From my side it should be done.

[bitnami-bot]

I have just updated the bitnami images with the latest known immutable tags:

• "docker.io/bitnami/grafana-operator:4.1.1-debian-10-r14"
• "docker.io/bitnami/grafana:8.3.3-debian-10-r14"

[Cellebyte]

Finally it’s done thanks to all of you :)