[BUG] Error using Tests Slice annotation with Spring Boot generated code

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

Spring boot test slices i.e: @WebMvcTest. @DataJpaTest, etc. don't work properly with the @SpringBootApplication class generated

openapi-generator version

7.7.0

OpenAPI declaration file content or url

Generation Details

The anotation @SpringBootApplication scan by default as

@ComponentScan(excludeFilters = { @Filter(type = FilterType.CUSTOM, classes = TypeExcludeFilter.class),
		@Filter(type = FilterType.CUSTOM, classes = AutoConfigurationExcludeFilter.class) })

This AutoConfigurationExcludeFilter is used to allow tests that only load an slice of the beans

but in autogenerated class, the ComponentScan is:

@ComponentScan(
    basePackages = {"com.example.demo", "com.example.demo.web" , "com.example.demo"},
    nameGenerator = FullyQualifiedAnnotationBeanNameGenerator.class
)

loosing the capability to execute slice tests

Steps to reproduce

You could execute branch master and the tests DemoIssueTests is going to fail

Related issues/PRs

Suggest a fix

You could check fix-issue branch with a template with the fix. I use the field scanBasePackages from SpringBootApplication to define scan packages instead @ComponentScan annotation. You could check that in this branch all test pass properly

Run the master branch from the linked reproduction repository and start with the failing DemoIssueTests test. Compare the generated @SpringBootApplication and @ComponentScan setup with the feature/fix-issue branch, focusing on why Spring Boot test slices cannot load correctly. Done means the reproduction tests pass with the generated code.