Closes gh-20636

Closes gh-20635

Closes gh-20634

Closes gh-20633

Closes gh-20632

Closes gh-20631

Closes gh-20569

Closes gh-20624

Closes gh-20378

* pr/20617:
  Polish "Fix @FlywayDataSource with multiple data sources"
  Fix @FlywayDataSource with multiple data sources

Closes gh-20617

See gh-20617

See gh-20617

Closes gh-20618

Closes gh-19564

Closes gh-20615

Previously, the presence of a `ConsumerFactory` bean would make the
auto-configured one to back off, leading to a failure down the line if
no available instance matches the generics criterion. This commit
improves the auto-configuration to create a `ConsumerFactory<?,?>`
behind the scenes if none is available.

Closes gh-19221

* pr/20523:
  Polish "Configure signature algorithm when using public key jwt decoder"
  Configure signature algorithm when using public key jwt decoder

Closes gh-20523

See gh-20523

See gh-20523

* pr/20604:
  Polish BindableTests

Closes gh-20604

See gh-20604

This commit upgrades the algorithm when trailing slash are to be
ignored. Previously a root URI (i.e. "/") would result to to empty
string which is an issue for monitoring system that requires tag values
to be non empty. If the URI is a single character, the trailing is not
applied and "/" is left as is.

Closes gh-20536

Closes gh-20578

Closes gh-20589

* gh-20583:
  Link to correct factory in TomcatReactiveWebServerFactory's javadoc

Closes gh-20583

See gh-20583

Closes gh-20587

* gh-20577:
  Only suggest Ubuntu versions available in the Docker registry

Closes gh-20577

See gh-20577

See gh-20567

This reverts commit d25286c5

Closes gh-20566

See gh-20576

Closes gh-20576

See gh-20576

Closes gh-20575

See gh-20574

See gh-20573

See gh-20571