Closes gh-26198

Closes gh-26197

Closes gh-25610

Closes gh-26179

Closes gh-26173

Closes gh-26174

* pr/26167:
  Use new update site for Spring Java Format's Eclipse plugin

Closes gh-26167

See gh-26167

Closes gh-26166

* pr/14928:
  Polish "Enhance multiple entity manager factories how-to"
  Enhance multiple entity manager factories how-to

Closes gh-14928

See gh-14928

See gh-14928

Closes gh-26118

This reverts commit 51d57e19.

See gh-25838

See gh-26130

See gh-26130

Closes gh-26130

Closes gh-25907

* pr/25455:
  Polish 'Don't detect CloudPlatform when property is set'
  Don't detect CloudPlatform when property is set

Closes gh-25455

See gh-25455

Update `CloudPlatform.isActive` to back-off from detection when any
`spring.main.cloud-platform` property is set.

See gh-25455

Update `MavenPublishingConventions` to add a new `mavenOptional` feature
that allows us to declare optional dependencies that are also published
in the generated POM.

This change allows us to include the maven-shade-plugin in the
spring-boot-maven-plugin POM which fixes an issue with Eclipse m2e.

Fixes gh-21992

Closes gh-26112

Closes gh-24027

Closes gh-26084

Closes gh-25905

Closes gh-26107

Closes gh-26099

Closes gh-26098

Closes gh-26097

Closes gh-26096

Closes gh-26095

Closes gh-26094

* pr/26086:
  Fix Docker update detection on CI

Closes gh-26086

See gh-26086

Increase timeout in `SampleSessionApplicationTests` to fix flaky local
builds.

Closes gh-25903

Closes gh-25906

Closes gh-25902