feat(testCucumberDeleteUser): add tests cucumber delete user

[Theo-lbg]

This pull request adds integration test support for the DELETE user endpoint, enabling automated testing of user deletion scenarios. The changes include new step definitions, test utility methods, and a feature file with scenarios for deleting users.

Integration test support for DELETE user endpoint:

• Added a new feature file delete_user.feature covering scenarios for deleting a user by ID, including both successful deletion and deletion of a non-existent user.
• Implemented new step definitions in StepDefinition.java to handle DELETE requests for specific users and the most recently created user.
• Added an executeDelete helper method to SpringIntegrationTest.java to facilitate sending DELETE HTTP requests in tests.
• Imported HttpMethod to support the new DELETE request method.

[sonarqube-xpeho]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarQube

[Copilot]

Pull request overview

Adds Cucumber-based integration test coverage for the DELETE /random-users/{id} endpoint within the existing Cucumber test suite (src/test/java/feature + src/test/resources/features).

Changes:

• Introduces delete_user.feature with scenarios for deleting an existing user and attempting to delete a non-existent user.
• Adds new Cucumber step definitions to issue DELETE requests (by explicit ID or by previously created ID).
• Extends the shared integration test base with an executeDelete(...) helper using TestRestTemplate.exchange.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
src/test/resources/features/delete_user.feature	Adds new DELETE endpoint scenarios and status code assertions.
src/test/java/feature/StepDefinition.java	Adds @When steps to call DELETE endpoints (including deleting the created user).
src/test/java/feature/SpringIntegrationTest.java	Adds executeDelete helper and imports HttpMethod.

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