See gh-22725

This commit adapts the auto-configuration for the new core r2dbc support
in Spring Framework and provides auto-configuration for
R2dbcEntityOperations.

Closes gh-22708

Closes gh-22717

Closes gh-22723

Closes gh-22717

Closes gh-22722

Closes gh-22721

See gh-22668

Closes gh-22688

See gh-22667

* gh-21388:
  Polish "Test the launch script when executed directly"
  Test the launch script when executed directly

Closes gh-21388

See gh-21388

See gh-21388

See gh-22709

Closes gh-20983

Closes gh-22712

Closes gh-22711

Closes gh-22709

* pr/22699:
  Use Supplier variants of Assert methods

Closes gh-22699

See gh-22699

Closes gh-22707

Closes gh-22706

Closes gh-22705

* pr/22704:
  Fix broken links to Micrometer registry docs

Closes gh-22704

See gh-22704

Closes gh-22594

* gh-22696:
  Polish "Fix NPE in BeanDefinitionLoader when XML support is disabled"
  Fix NPE in BeanDefinitionLoader when XML support is disabled

Closes gh-22696

See gh-22696

See gh-22696