* pr/14152:
  Fix potential infinite recursive loop in toString

Closes gh-14152

Upgrade to M2 broke a test that was looking for a particular bean that
is configured by Spring Integration (`HeaderChannelRegistry`).

It looks like INT-4517 is related to the regression as it registers the
bean too late for the auto-configuration to see it.

This commit changes the condition to a more central bean that is created
very early on.

Closes gh-14142

Closes gh-14144

Closes gh-14123

Closes gh-14143

Closes gh-14155

Closes gh-14083

Closes gh-14081

Closes gh-14125

* pr/14125:
  Polish "Replace loops with Arrays.setAll where possible"
  Replace loops with Arrays.setAll where possible

Closes gh-14125

See gh-14125

* pr/14138:
  Fix typo

Closes gh-14138

* pr/14130:
  Remove unused method in TypeUtils

Closes gh-14130

See gh-13830

* pr/14132:
  Upgrade to Neo4j Ogm 3.1.1

Closes gh-14132

* pr/14124:
  Align SessionsEndpoint with Spring Session API improvements
  Start building against Spring Session Bean M2 snapshots

This commit aligns SessionsEndpoint with
FindByIndexNameSessionRepository API improvements that simplifies
retrieval of sessions by principal name.

Closes gh-14124

See gh-14123

Fixes gh-13970

Closes gh-13830

This commit adds a new `WebFluxRegistrations` interface that
allows developers to register custom instances of key WebFlux
infrastructure components, such as `RequestMappingHandlerMapping`
and `RequestMappingHandlerAdapter`.

Closes gh-13997