Closes gh-20739

This commit improves the Liquibase auto-configuration to only rely on
spring-jdbc when a `DataSource` should be created on-the-fly for the
purpose of its initialization.

Previously, a connection pool implementation must be added as well, now
we're fallbacking on `SimpleDriverDataSource` if necessary. This
improves the database initialization use case with R2DBC.

Closes gh-20715

Closes gh-20741

* gh-20708:
  Polish GroovyTemplateAutoConfiguration

Closes gh-20708

See gh-20708

Closes gh-20740

* gh-20676:
  Polish "Use @DynamicPropertySource for Neo4J and Redis data tests"
  Use @DynamicPropertySource for Neo4J and Redis data tests

Closes gh-20676

See gh-20676

See gh-20676

Prior to this commit, the build plugin goal/task for building images
required a locally running Docker daemon that was accessed via a
non-networked socket or pipe.

This commit adds support for remote Docker daemons at a location
specified by the environment variable `DOCKER_HOST`. Additional
environment variables `DOCKER_TLS_VERIFY` and `DOCKER_CERT_PATH`
are recognized for configuring a secure TLS connection to the daemon.

Fixes gh-20538

Closes gh-20391

Closes gh-18830

Closes gh-20726

Closes gh-20725

Closes gh-20719

Closes gh-20718

Closes gh-20717

This commit is a follow-up of gh-20709 to apply the same consistency
level to the Cassandra reactive health indicator.

Closes gh-20713

Closes gh-20712

Closes gh-20711

* pr/20709:
  Polish "Use LOCAL_ONE when querying system.local"
  Use LOCAL_ONE when querying system.local

Closes gh-20709

See gh-20709

The system keyspace has a replication factor of 1 and is local to each
node; it is therefore recommended to query system.local with a
consistency level of ONE or LOCAL_ONE.

Stronger consistency levels may result in an Unavailable error, but this
does not mean that the node is down.

See gh-20709

See gh-20704

See gh-20704

* pr/20704:
  Fix typos

Closes gh-20704

See gh-20704

This commit restores the port option that was removed in an earlier
milestone. Contact points that do not define a port already are
automatically transformed to include the one configured, with a default
matching Cassandra's default port.

This makes upgrades easier in the case a cluster uses consistent ports
everywhere.

Closes gh-19672

Closes gh-20674

Closes gh-20700

Closes gh-20478

Closes gh-20699

Closes gh-20689

Closes gh-20694

* pr/20681:
  Use jws-algorithm property in ReactiveOAuth2ResourceServerJwkConfiguration

Closes gh-20681

See gh-20681