See gh-22548

Closes gh-22900

Closes gh-22899

* pr/22898:
  Polish "Harmonize Discover the HTTP Port at Runtime How-To"
  Harmonize Discover the HTTP Port at Runtime How-To

Closes gh-22898

See gh-22898

See gh-22898

* pr/22858:
  Polish 'Support ConfigurationClassPostProcessor supplier'
  Support ConfigurationClassPostProcessor supplier

Closes gh-22858

See gh-22858

Update `SharedMetadataReaderFactoryContextInitializer` to optionally
support a `ConfigurationClassPostProcessor` provided via an instance
`Supplier`.

If the instance supplier is available then we can use that to set the
`MetadataReaderFactory` non-reflectively, instead of using a
`PropertyValue` (and the `BeanWrapper` eventually).

The previous behavior is left as a  fallback and without a change in
Spring Framework will continue to be the default for most applications.

See gh-22858

Closes gh-22897

Closes gh-22895

Fixes gh-21542

* pr/22845:
  Polish 'Allow step action to be optional'
  Allow step action to be optional

Closes gh-22845

See gh-22845

Update `SpringApplicationRunListeners` so that the step action
is optional and does not need to call `end()`.

This commit also introduces a test for the failure case showing
that there is a missed call to end with the initial solution.

See gh-22845

Closes gh-22893

* gh-22829:
  Polish "Exclude cookie headers by default from HTTP traces"
  Exclude cookie headers by default from HTTP traces

Closes gh-22829

See gh-22829

See gh-22829

Closes gh-22891

Closes gh-22890

Closes gh-22685

Closes gh-22889

Closes gh-21787

Closes gh-22888

Closes gh-22887

Closes gh-22884

Closes gh-22883

Closes gh-22882

Closes gh-22881

Closes gh-22880

Closes gh-22879

Closes gh-22878

Closes gh-22877

Closes gh-22876

Closes gh-22875

Closes gh-22873

Closes gh-22872