Correct diapotb test otbSARDEMToAmplitudeTest_S1CapVerde

Description

One functional test of diapotb fails only in debug with an assert. Details are here #2470 (comment 113905) .

We need to repair otbSARDEMToAmplitudeTest_S1CapVerde and to check if the data is still relevant.

Definition of Ready

Generic:

• Issue complexity evaluated
• Priority of issue evaluated
• If there is specific test data needed, it should be detailed and available
• If there is a specific documentation/specification need, it should be available to the development team
• Time during the sprint to realize this issue
• Blocking elements resolved (check if non-applicable, detail otherwise the resolved elements)

Definition of Done

Generic:

• No test regression on CI
• Code reviewed by peers
• Code cleaned, no "debug" traces or "TODO" comments kept.
• New code documented