This commit renames 'spring.test.metrics.auto-configure' and
'spring.test.tracing.auto-configure' for consistency with the non-test
properties. It also adds a configuration metadata entry for
'spring.test.observability.auto-configure' that's superseded by these
two properties.
Closes gh-47776
Make `spring-boot-test-autoconfigure` optionally depend on
`spring-boot-autoconfigure` so that it can be an `api` dependency
for `*-test` modules. Also relocate it to core.
See gh-47322
This commit modularizes spring-boot-test-autoconfigure. It now
contains only the code that's central to test auto-configuration.
Feature-specific functionality has moved out into -test modules,
some existing and some newly created. For example, `@DataJpaTest` can
now be found in spring-boot-data-jpa-test.
Closes gh-47322
Stéphane Nicoll
Moritz Halbritter
Phillip Webb
Andy Wilkinson