feat: add topology constraints support

[fadelananda]

Description

This PR introduces support for TopologySpreadConstraints for Kubernetes version >1.18.0 that we can customize to improve pods spread, leading to high availability.

References

Review Checklist

• I have clicked on "allow edits by maintainers".
• I have added documentation for new/changed functionality in this PR or in a PR to openfga.dev [Provide a link to any relevant PRs in the references section above]
• The correct base branch is being used, if not main
• I have added tests to validate that the change in functionality is working as expected

[linux-foundation-easycla]

• ✅login: fadelananda / (f6b4baf)

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[jeremy-albuixech]

this looks good, could you include an example and ensure it renders properly? thanks!

[fadelananda]

this looks good, could you include an example and ensure it renders properly? thanks!

Hi @jeremy-albuixech, here is the screenshots of the render that I did locally, I used a custom values.yaml that contains this values

topologySpreadConstraints:
  - labelSelector:
      matchLabels:
        app: test
    maxSkew: 1
    topologyKey: iss.internal/schedule-priority
    whenUnsatisfiable: DoNotSchedule

Rendering with kubernetes version >= 1.18

Rendering with kubernetes version < 1.18

[jeremy-albuixech]

awesome, thank you for the contribution :)