[BUG] Async Translog Durability restriction is not being honored when indices are created through templates

[shourya035]

Describe the bug

Today, when we set the cluster.remote_store.index.restrict.async-durability setting, indices cannot be created with the index.translog.durability setting as async. However, this behavior is bypassed when the index is created through index templates.

Related component

Storage:Remote

To Reproduce

• Create a cluster with cluster.remote_store.index.restrict.async-durability set to true
• Create an index template with the following setting:

"index.translog.durability": "async"

• Index would get created with Async translog durability

Expected behavior

Index template creation should be blocked in this case

Additional Details

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• OS: [e.g. iOS]
• Version [e.g. 22]

Additional context
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[ashking94]

Closing this issue as the reference PR has been merged already.
[Triage - attendees 1 2 3 4 5]