install observability CRD via Helm

[stehessel]

Description

When provisioning a new data plane cluster by running the terraform chart for the first time, it fails with

Release "rhacs-terraform" does not exist. Installing it now.
Error: unable to build kubernetes objects from release manifest: resource mapping not found for name: "observability-stack" namespace: "rhacs-observability" from "": no matches for kind "Observability" in version "observability.redhat.com/v1"
ensure CRDs are installed first

By installing an initial version of the CRD via Helm, this problem should be fixed.

Checklist (Definition of Done)

• Unit and integration tests added
• Added test description under Test manual
• Documentation added if necessary (i.e. changes to dev setup, test execution, ...)
• CI and all relevant tests are passing
• Add the ticket number to the PR title if available, i.e. ROX-12345: ...
• Discussed security and business related topics privately. Will move any security and business related topics that arise to private communication channel.

Test manual

TODO: Add manual testing efforts

# To run tests locally run:
make db/teardown db/setup db/migrate
make ocm/setup OCM_OFFLINE_TOKEN=<ocm-offline-token> OCM_ENV=development
make verify lint binary test test/integration

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: 0x656b694d, stehessel
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