[BUG]Accelerate Table Flyout not working(Flint Datasource) -expecting dataSourceType

[TackAdam]

What is the bug?
For Flint datasources. the "Accelerate Table" flyout button opens a blank page due to dataSourceType being undefined.
This is introduced by opensearch-project/dashboards-observability@19d68b2
And is shown here https://github.com/opensearch-project/dashboards-observability/blob/b328720c11811d45da9d0594c5c28a18dd8fa2d0/public/components/datasources/components/manage/accelerations/create_accelerations_flyout/selectors/index_type_selector.tsx#L27

How can one reproduce the bug?

1. Go to queryWorkBench and switch to a Flint data source.
2. Click on Accelerate Table
3. The flyout will be blank.

What is the expected behavior?
Using a commit prior to this for dashboards-observability such as
opensearch-project/dashboards-observability@e5af7eb works as intended

Screen.Recording.2024-07-11.at.2.32.59.PM.mov

What is your host/environment?

• OS: [e.g. iOS]
• Version [e.g. 22]
• Plugins

Do you have any additional context?
queryWorkBench does not pass a dataSourceType and the undefined behavior will cause the flyout to fail.

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