Update Helm chart kubeVersion check

[ianb-mp]

Change the kubeVersion constraint to permit pre-release versions as per: https://helm.sh/docs/chart_template_guide/function_list/#working-with-prerelease-versions

Without this change, if I attempt to install the helm chart into k8s version v1.27.1-3443+19254894103e33-dirty I see this error:

Error: INSTALLATION FAILED: chart requires kubeVersion: >= 1.16.0 which is incompatible with Kubernetes v1.27.1-3443+19254894103e33-dirty

[github-actions]

Thanks for your PR,
To run vendors CIs use one of:

• /test-all: To run all tests for all vendors.
• /test-e2e-all: To run all E2E tests for all vendors.
• /test-e2e-nvidia-all: To run all E2E tests for NVIDIA vendor.

To skip the vendors CIs use one of:

• /skip-all: To skip all tests for all vendors.
• /skip-e2e-all: To skip all E2E tests for all vendors.
• /skip-e2e-nvidia-all: To skip all E2E tests for NVIDIA vendor.
  Best regards.

[coveralls]

Pull Request Test Coverage Report for Build 7441852067

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.06%) to 25.683%

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Totals
Change from base Build 7394863285:	-0.06%
Covered Lines:	2358
Relevant Lines:	9181

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💛 - Coveralls

[Eoghan1232]

This change is fine with me.