[GreenCityUser, Sonar] Fix Issues in GreenCityUser service and service-api modules

[K4sik]

Improve Maintainability in GreenCityUser Service and Service-API Modules

Changes Required:

• ApiLocate.java: Remove the @parameters section for clarity and conciseness.
• CustomExceptionHandlerTest.java: Eliminate unnecessary commented-out test cases and correct the value assignments for improved test clarity.
• ManagementSecurityControllerTest.java: Remove redundant local variable assignments for dto.
• JwtTool.java: Replace RuntimeException with a more specific IllegalArgumentException to enhance exception handling and add requirement handler exception.
• Annotations: Add @SuppressWarnings("java:S1118") to EmailAddressValidator, LanguageValidationUtils, and UrlValidator to bypass SonarLint issues.
• Mocking Updates: Replace the deprecated initMocks with @ExtendWith(MockitoExtension.class) in SearchCriteriaTest.java, CustomSpecificationTest.java, and UserSpecificationTest.java.
• Code Refactor (OwnSecurityServiceImplTest.java): Rename the field notVerifiedUser and refactor lambdas to ensure only one exception-throwing invocation per lambda.
• VerifyEmailServiceImplTest.java: Remove commented-out code blocks that are no longer needed.
• UserServiceImplTest.java: Rename the ambiguous user variable, and remove redundant assignments to sixFriendsWithOnlineStatusDtos and friendsWithOnlineStatusDtos.