fix(specs): add getVersion parameter to getSettings

[millotp]

🧭 What and Why

🎟 JIRA Ticket: CR-9310

Add the getVersion query parameter to getSettings.
This was removed in https://github.com/algolia/doc/pull/7793, but is still useful for the Dashboard.

Original description of this parameter:

#### Backward compatibility

Synonyms were originally set via the index settings,
and a [Get settings](#get-settings) call would return all synonyms as part of the settings JSON data.

This behavior is still available to maintain backward compatibility.
If you don't want to include synonyms in your settings, add `getVersion=2` to your request as a query parameter:

`GET /1/indexes/{indexName}/settings?getVersion=2`

Until you switch to this new Synonyms API, you can still manage your synonyms via the index settings.

[algolia-bot]

✔️ Code generated!

Name	Link
🪓 Triggered by	630c0a87a3867b32e849882c71238958c2e5d104
🍃 Generated commit	8840291a768f08e85ff6cdbed9bcd7e76f72a52d
🌲 Generated branch	generated/fix/get-version

📊 Benchmark results

Benchmarks performed on the method using a mock server, the results might not reflect the real-world performance.

Language	Req/s
go	1754
javascript	1612
php	1494
csharp	1289
python	1135
java	982
ruby	840
swift	393
scala	23