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

Closes gh-22698

Prior to this commit, the livenessState and readinessState health
indicators would not be configured automatically and would be missing
from the "liveness" and "readiness" health groups, leading to 404s when
hitting the `/actuator/health/liveness` or `/actuator/health/readiness`.

This commit ensures that the health indicators beans have the proper
name and revisits the auto-configuration conditions to reflect that as
well.

Fixes gh-22562

Closes gh-22697

* gh-22631:
  Polish "Document properties to enable probe health indicators"
  Document properties to enable probe health indicators

Closes gh-22631

See gh-22631

Document property names to enable probe(readiness/liveness)
health indicators.

See gh-22631

Closes gh-22687

Closes gh-22686

* gh-22681:
  Polish "Look in correct context when finding Liquibase beans"
  Look in correct context when finding Liquibase beans

Closes gh-22681

See gh-22681

See gh-22681

See gh-22645

Closes gh-22678

Closes gh-21570

Closes gh-22677

Closes gh-22094

Closes gh-22676

Fixes gh-21606

Closes gh-22673