Closes gh-13820

Closes gh-13827

* pr/13817:
  Polish "Make sure exception tag values are not empty in web metrics"
  Make sure exception tag values are not empty in web metrics

Closes gh-13187

See gh-13187

Previously, exclude of an import selector was applied only locally. In
other words, if one import selector imports `AcmeAutoConfiguration` and
another one exclude it, it would still be imported because exclude were
applied separately

This commit collects the outcome of all auto-configuration import
selectors and then apply exclusions in a single pass.

Closes gh-12586

Closes gh-13824

See gh-13210

Closes gh-13807

Closes gh-13809

Closes gh-13808

Closes gh-13803

See gh-13210

See gh-13783

Fixes gh-13783

* gh-13775:
  Polish EndpointRequest.RequestMatcherFactory.antPath()

Closes gh-13775

Closes gh-13210

This commit also contains changes to `ServletContextInitializerBeans`.
`ServletContextInitializerBeans` can now be configured to only look
for specific ServletContextInitializer subclasses, defaulting to
ServletContextIntializer.class. `SpringBootMockMvcBuilderCustomizer`
only cares about filters so it was unnecessary to look for all
`ServletContextInitializer`s. Additionally, adapting `Servlet` beans
caused a cycle once the `DispatcherServlet` bean was added and the
customizer only needs to adapt `Filter` beans.

Closes gh-13241

Closes gh-13781

Closes gh-13547

* pr/13797:
  Remove unused AbstractCouchbaseAutoConfigurationTests

Closes gh-13797