[CCI][Table] Add data test subjects to table components for easier testing

[kavilla]

Some of the components for the table visualizations can add data test subjects to find them easier. For example: https://github.com/opensearch-project/OpenSearch-Dashboards/blob/main/src/plugins/vis_type_table/public/components/table_vis_component_group.tsx#L25

Can be transform

        {tableGroups.map(({ table, title }, index) => (
          <div key={title} className="visTable__group" data-test-subj={`visTableGroup${index}`}>
            <TableVisComponent
              title={title}
              table={table}
              visConfig={visConfig}
              event={event}
              uiState={uiState}
            />
          </div>
        ))}

This will allow us to turn: https://github.com/opensearch-project/opensearch-dashboards-functional-test/blob/main/cypress/utils/dashboards/vis_type_table/table.js#L11

Into

cy.get(`[data-test-subj="visTableGroup${i}"]`)

This will help make the tests a little bit more stable and easier to read.