Merge branch 'master' into 'main'

...m/example/gestionstagesbackend/Config/SecurityConfig.java

...estionstagesbackend/controllers/EnterpriseController.java

...ple/gestionstagesbackend/controllers/StageController.java

...ava/com/example/gestionstagesbackend/model/Candidacy.java

...va/com/example/gestionstagesbackend/model/Enterprise.java

...in/java/com/example/gestionstagesbackend/model/Stage.java

...stionstagesbackend/repositories/EnterpriseRepository.java

...le/gestionstagesbackend/repositories/StageRepository.java

...mple/gestionstagesbackend/services/EnterpriseService.java