### Elasticsearch Version

all serverless

### Installed Plugins

_No response_

### Java Version

_bundled_

### OS Version

all

### Problem Description

Creating a time series instance in Serverless fails with the following error:

```
elasticsearch.exceptions.RequestError: RequestError(400, 'illegal_argument_exception', 'Settings [index.time_series.end_time,index.time_series.start_time,index.routing_path] are not available when running in serverless mode')
```

### Steps to Reproduce

I used a custom Python client script to create an index

```
from elasticsearch import Elasticsearch
import sys
import argparse
import os

if os.environ.get('API_KEY') is None or os.environ.get('ELASTICSEARCH_URL') is None:
    print(f"Missing environment variables 'API_KEY' and 'ELASTICSEARCH_URL'")

api_key = os.environ.get("API_KEY")
elasticsearch_url = os.environ.get("ELASTICSEARCH_URL")

print(f"Using api key: {api_key}")
print(f"Using Elasticsearch url: {elasticsearch_url}")

client = Elasticsearch(
  elasticsearch_url,
  api_key=api_key
)

parser = argparse.ArgumentParser(description='Elasticsearch TSDB indexing')
parser.add_argument('dataset', help='The set of documents to index as a Json file')
parser.add_argument('index', help='The index where data will be indexed')

args = parser.parse_args()

mappings = {
    "settings": {
      "index": {
        "mapping.total_fields.limit": 10000,
        "codec": "default",
        "routing_path": [
          "cloud_region",
          "pod_id"
        ],
        "time_series": {
          "start_time": "2023-09-01T00:00:00",
          "end_time": "2023-09-30T23:59:59"
        }
      }
    },
    "mappings": {
        "properties": {
            "@timestamp": {
                "type": "date"
            },
            "cloud_region": {
                "type": "keyword",
                "time_series_dimension": "true"
            },
            "pod_id": {
                "type": "keyword",
                "time_series_dimension": "true"
            },
            "counter": {
                "type": "integer",
                "time_series_metric": "counter"
            },
            "gauge": {
                "type": "double",
                "time_series_metric": "gauge"
            }
        }
    }
}


delete_response = client.indices.delete(
    index=args.index,
    ignore_unavailable=True
)
print(f"Delete response: {delete_response}")

create_response = client.indices.create(
    args.index,
    body=mappings
)
print(f"Create response: {create_response}")
```

### Logs (if relevant)

_No response_
server/src/main/java/org/elasticsearch/cluster/metadata/IndexMetadata.java
}
            @Override
            public Iterator<Setting<?>> settings() {
                final List<Setting<?>> settings = List.of(INDEX_NUMBER_OF_SHARDS_SETTING);
                return settings.iterator();
            }
        },
        Property.IndexScope
    );
    public static final String SETTING_AUTO_EXPAND_REPLICAS = "index.auto_expand_replicas";
    public static final Setting<AutoExpandReplicas> INDEX_AUTO_EXPAND_REPLICAS_SETTING = AutoExpandReplicas.SETTING;
    public enum APIBlock implements Writeable {
        READ_ONLY("read_only", INDEX_READ_ONLY_BLOCK, Property.ServerlessPublic),
        READ("read", INDEX_READ_BLOCK, Property.ServerlessPublic),
        WRITE("write", INDEX_WRITE_BLOCK, Property.ServerlessPublic),
        METADATA("metadata", INDEX_METADATA_BLOCK, Property.ServerlessPublic),
        READ_ONLY_ALLOW_DELETE("read_only_allow_delete", INDEX_READ_ONLY_ALLOW_DELETE_BLOCK);
        final String name;
        final String settingName;
        final Setting<Boolean> setting;
        final ClusterBlock block;
        APIBlock(String name, ClusterBlock block) {
            this.name = name;
            this.settingName = "index.blocks." + name;
            this.setting = Setting.boolSetting(settingName, false, Property.Dynamic, Property.IndexScope);
            this.block = block;
        }
        APIBlock(String name, ClusterBlock block, Property serverlessProperty) {
            this.name = name;
            this.settingName = "index.blocks." + name;