Allow security plugin's install_demo_configuration to write to opensearch.yml

[cwperks]

Description

This PR comments out the demo configuration values for the security plugin in values.yaml of the opensearch chart. When a pod is spun up, it runs the install_demo_configuration script which will write these values into opensearch.yml so the helm chart does not need to explicitly include these. Leaving these values in as a comment so users of the chart know what to replace when configuring security.

Tested by modifying the values.yaml of the opensearch chart and ensuring a cluster boots up properly after running:

helm install -f ./charts/opensearch/values.yaml opensearch opensearch/opensearch

Issues Resolved

Resolves: https://github.com/opensearch-project/security/issues/4923

Check List

• [ ] Commits are signed per the DCO using --signoff

For any changes to files within Helm chart directories:

• [ ] Helm chart version bumped
• [ ] Helm chart CHANGELOG.md updated to reflect change

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[cwperks]

Closing this as duplicate of https://github.com/opensearch-project/helm-charts/pull/618

[cwperks]

Re-opened temporarily to verify CI checks.