Closes gh-20030

* pr/19981:
  Polish "Stop time web metrics when autotime is disabled"
  Stop time web metrics when autotime is disabled

Closes gh-19981

See gh-19981

See gh-19981

Closes gh-20029

Closes gh-20028

* pr/19901:
  Polish contribution
  Handle message of @ResponseStatus-annotated exception with WebFlux

Closes gh-19901

See gh-19901

See gh-19901

Fixes gh-19823

This partially re-applies the deprecation removal from commit
https://github.com/spring-projects/spring-boot/commit/df1837a16bc39a9314e34e5e89c76e1ddf56372c,
without removing CompositeHealthIndicator, HealthAggregator, and related
configuration that is required by Spring Cloud.

Closes gh-19909

This reverts commit df1837a16bc39a9314e34e5e89c76e1ddf56372c.

* pr/19978:
  Update copyright year of changed files
  Polish buildSrc

Closes gh-19978

See gh-19978

See gh-19978

* pr/20020:
  Update copyright year of changed files
  Polish

Closes gh-20020

See gh-20020

See gh-20020

* pr/20022:
  Upgrade to Ivy 2.5.0

Closes gh-20022

See gh-20022

* pr/19992:
  Fix link to Spring Integration Graph documentation

Closes gh-19992

See gh-19992

Closes gh-20023

This commit changes the classpath check condition to verify that the
core module of the MongoDB driver is present. Previously, we were only
checking for the presence of the sync driver, making embedded support
unavailable with the reactive variant.

Closes gh-19960

* pr/19960:
  Polish "Upgrade to MongoDB Java Driver 4.0 beta1"
  Upgrade to MongoDB Java Driver 4.0 beta1

Closes gh-19960

See gh-19960

See gh-19960

Closes gh-20017

Closes gh-20015

This commit upgrades to spring javaformat 0.0.20 and Checkstyle 8.29.

This commit also upgrades to the Checkstyle maven plugin 3.1.0.

See gh-20011

* pr/20002:
  Upgrade to Ant 1.10.7

Closes gh-20002

See gh-20002

Closes gh-20013

* pr/20004:
  Polish samples in doc

Closes gh-20004

See gh-20004

* pr/20009:
  Use Spring 5 module of Jersey

Closes gh-20009