ROX-16615: Make the probe service create multiple centrals (per region / cloud provider)

[kovayur]

Description

Make the probe service create multiple central specs (different cloud providers/regions) in a single probe run.
The change is a prerequisite for migrating the probe service from the data plane to the control plane.
The change is backward compatible w.r.t. the helm chart => no deployment changes needed.

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.
• Add secret to app-interface Vault or Secrets Manager if necessary
• RDS changes were e2e tested manually
• Check AWS limits are reasonable for changes provisioning new resources
• (If applicable) Changes to the dp-terraform Helm values have been reflected in the addon on integration environment

Test manual

Test probe:

export FLEET_MANAGER_ENDPOINT=<stage url>
export AUTH_TYPE=OCM
export OCM_USERNAME=<ocm username>
export OCM_TOKEN=token
export CENTRAL_SPECS=`[{ "cloudProvider": "aws", "region": "us-east-1" }, { "cloudProvider": "aws", "region": "eu-west-1" }]`
./probe/bin/probe start

Test helm chart

export HELM_DRY_RUN=true
export HELM_DEBUG=true
./deploy/helm/probe/deploy.sh dev acs-dev-dp-01

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kovayur, kurlov, stehessel

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