[CI] Update CDash to latest version

Description

Cdash version hosted on cdash.orfeo-toolbox.org is currently outdated (released in march 2022 https://github.com/Kitware/CDash/releases/tag/v3.1.0 ). The latest version is 4.2.0 (at the time of writting this issue).

Currently this instance of cdash is also used by QGis. @thibrom already try to migrate the database to the new cdash instance but it is not possible.

One way could be to open another cdash instance on a new url (like test.orfeo-toolbox.org), forget all our previous database and let time for qgis to save and migrate to the new instance

Previous migration also lead to database lost (see https://github.com/qgis/QGIS/pull/30717 and https://gitlab.orfeo-toolbox.org/orfeotoolbox/otb/-/issues/2277#note_100657 )

Definition of Ready

Generic:

• If this issue is consequent, it is split into subtasks with priority and complexity evaluated. These subtasks should be linked to this issue:
  • Website xxx.orfeo-toolbox.org available
  • All project (including qgis) recreated on the new instance
  • All OTB porject CI pointing to the new url
• 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)

Specific:

• When this issue is started, warn QGis team about the changes

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

Specific:

• Migration document for future migrations
• Result pushed on new instance