feat MPP-519 Return in payment step in prestashop 1.6 on cancel payment

[Benjamin-Freoua-Alma]

Reason for change

Return to the payment step after cancel in Prestashop 1.6

Code changes

We add the step 3 for step payment in the return url for cancel

How to test

As a reviewer, you are encouraged to test the PR locally.

Make a payment and clic Exit in Checkout Alma to see if we return in the payment page in Prestashop 1.6

Checklist for authors and reviewers

• The title of the PR uses business wording, not technical jargon, for the changelog readers to understand it
• The PR implements the changes asked in the referenced task / issue
• The automated tests are compliant with the testing strategy
• The tests are relevant, and cover the corner/error cases, not only the happy path
• You understand the impact of this PR on existing code/features
• The changes include adequate logging and Datadog traces

Non applicable

• Documentation is updated (API, developer documentation, ADR, Notion...)

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

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