Closes gh-26765

Closes gh-26763

Closes gh-26771

See gh-26682

Closes gh-26828

Closes gh-26620

Closes gh-26836

Closes gh-26835

Closes gh-26834

Closes gh-26833

Closes gh-26832

Closes gh-26831

Closes gh-26830

Closes gh-26829

See gh-26682

Closes gh-26761

Closes gh-26760

Closes gh-26825

Closes gh-26827

Closes gh-26826

Fixes gh-26812

Closes gh-26823

Closes gh-26822

Change `CompositeHealth.getDetails()` to public so that it serializes
correctly when `MapperFeature.CAN_OVERRIDE_ACCESS_MODIFIERS` is
disabled.

Fixes gh-26797

Remove fallback code since we now require Gradle 6.8 and can depend
on the `getMainClass` method being present.

Closes gh-26794

Rename the `derivefrom` method in `ConnectionFactoryBuilder` to
`derivedFrom` to align with `DataSourceBuilder`.

Fixes gh-26810

Fix a bug in `DataSourceInitializationConfiguration` and in
`R2dbcInitializationConfiguration` that was stopping
custom username/password properties from being applied.

Fixes gh-26676

Collapse parameter name and user property into a single column to give
a little more room for the description and default value.

Closes gh-25739

Change the order of `DataSourceScriptDatabaseInitializerDetector` so
that it always runs last. This update allows script initialization to
be combined with a high-level migration tool such as Flyway.

Closes gh-26692

Update `DatabaseInitializationDependencyConfigurer` so that depends-on
ordering is applied based on the `DatabaseInitializerDetector` order.

Prior to this commit, if multiple DatabaseInitializer beans were
detected the order in which they were initialized was not defined.

See gh-26692

See gh-26658