fix: helm lint error with >1 AzureIngressProhibitedTarget

[chris-pinola-rf]

Checklist

• The title of the PR is clear and informative
• If applicable, the changes made in the PR have proper test coverage
• Issues addressed by the PR are mentioned in the description followed by Fixes.

Description

If .Values.appgw.prohibitedTargets contains more than one element, helm lint (v3.7) fails with:

[ERROR] templates/crds.yaml: unable to parse YAML: invalid Yaml document separator: apiVersion: appgw.ingress.k8s.io/v1

See for more info: helm/helm#10149 (comment)

I updated the snapshot test case and regenerated the output with:

$ cd helm/ingress-azure/tests
$ rm -rf snapshots/ && RENDER_SNAPSHOTS=true go test chart_test.go snapshots.go

Fixes

Could not find any.

[chris-pinola-rf]

@microsoft-github-policy-service agree company="Wonder Group, Inc"

[chris-pinola-rf]

@akshaysngupta I see you've worked on the Helm chart ~recently, would you mind reviewing this?