Rename `ServerRSocketFactoryCustomizer` to
`ServerRSocketFactoryProcessor` to better reflect that it is not a
traditional customizer.

Closes gh-18390

Closes gh-15132

See b5069a4f

Closes gh-18418

Closes gh-18474

Closes gh-18476

Previously, Maven's default behaviour was relied up which resulted
in the artifact ID being appended to each URL as it was inherited.
This behaviour can only be disabled in Maven 3.6 and later, a version
that we cannot use due to an incompatibility with the Flatten Plugin.

This commit works around Maven's default behaviour by defining
properties for the SCM URL, connection, and developer connection and
then explicitly defining the settings in each pom using these
properties. The explicit definition of the properties in each pom
prevents them being inherited from the parent, thereby disabling the
unwanted appending of the artifact ID to the URL.

Fixes gh-18328

Closes gh-18252

Closes gh-18257

* pr/18438:
  Polish 'Simplify some code'
  Simplify some code

Closes gh-18438

See gh-18438

See gh-18438

Update `@ConfigurationProperties` constructor binding support to only
apply when a `@ConstructorBinding` annotation is present on either the
type or the specific constructor to use.

Prior to this commit we didn't have a good way to tell when constructor
binding should be used vs regular autowiring.

For convenience, an `@ImmutableConfigurationProperties` meta-annotation
has also been added which is composed of `@ConfigurationProperties` and
`@ConstructorBinding`.

Closes gh-18469

This reverts commit e7e69e2e.

See gh-18257

Closes gh-18257

* gh-18470:
  Align with Spring Session MongoDB deprecations

Closes gh-18470

See gh-18470

Closes gh-18255

Closes gh-18254

Closes gh-18251

Closes gh-18468

Update `JerseyManagementContextConfiguration` so that customizer beans
are not longer applied. The endpoint resource endpoints are now added
with a registrar bean `@PostConstruct` method.

Prior to this commit, when running the management server on a different
port a `Resource` added by a customizer could be added two different
`ResourceConfig` instance. This breaks the singleton contract expected
by Jersey.

Fixes gh-17801
Co-authored-by: Phillip Webb <pwebb@pivotal.io>

Closes gh-18256

Along the way, this commit also fixes a typo.

Closes gh-18325

Closes gh-18466

Closes gh-18465

See gh-18316

See gh-18315