Closes gh-17794

* pr/17774:
  Fix typo in assertion

Closes gh-17774

See gh-17774

Closes gh-17675

Closes gh-17786

Closes gh-17581

Closes gh-17645

Closes gh-17641

Closes gh-17643

Closes gh-17783

Closes gh-17640

Closes gh-17642

Closes gh-17353

Closes gh-17352

Closes gh-17777

Missing change logs would lead to an exception even
if the checkChangeLogLocation was set to false. Spring Boot's check
would pass but Liquibase would fail later making this property redundant.

Fixes gh-16232

* pr/17662:
  Polish "Refine back-off strategy of Neo4j SessionFactory"
  Refine back-off strategy of Neo4j SessionFactory

Closes gh-17662

See gh-17662

This commit separates the auto-configuration of the `SessionFactory` in
an isolated class so that the rest of the auto-configuration is still
applied if the user provides a custom `SessionFactory` bean.

See gh-17662

Closes gh-17763

Closes gh-17351

Closes gh-17221

Closes gh-15343

Fixes gh-16309

For consistency, similar beans have been renamed as well.

Closes gh-17751

* pr/17488:
  Polish "Create RestClient from a RestHighLevelClient if available"
  Create RestClient from a RestHighLevelClient if available

Closes gh-17488

This significantly rework the auto-configuration to reflect the order
in which things are expected. Rather than keeping a conceptual cycle
between the builder and the two inner classes that are processed first,
the configuration is now split in three parts:

* The builder that is required and common
* The configuration when the HighLevelClient is available
* The RestClient configuration when that's not the case

See gh-17488