Describe the bug

When an index is created, the MetadataCreateIndexService will aggregate all the settings from explicit request, index template and additional settings from plugin. As for INDEX_REPLICATION_TYPE_SETTING setting, it will be finally verified and set by updateReplicationStrategy from MetadataCreateIndexService, however, this function doesn't respect the settings from Plugins, which is included in the parameter settingsBuilder, if a plugin provides an explicit setting of replication type, it will eventually be override by this function, which I think is not the expected behavior?

Related component

Plugins

To Reproduce

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2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior

When a plugin provide explicit Replication type setting, it should be respected

Additional Details

Plugins
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Host/Environment (please complete the following information):

• OS: [e.g. iOS]
• Version [e.g. 22]

Additional context
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