See gh-25449

Closes gh-25449

Previously, actuator endpoints were registered with Jersey upon
injection of the ResourceConfig bean into a registrar class rather than
using a ResourceConfigCustomizer. This was done to fix a problem
when running the Actuator on a separate port where the main application
context's customizers were also applied to the management context,
breaking the singleton contract for those resources. This approach
meant that the registration could be performed at any point after the
ResourceConfig had been created. When Jersey's configured as a Filter
this resulted in the registration failing as the attempt was being made
after the Filter lifecyle callbacks which make the ResourceConfig
immutable.

This commit reworks the endpoint registration to be performed using a
ManagementContextResourceConfigCustomizer, a resource config customizer
that's only applied to the ResourceConfig that's used by the Actuator.
When there's a separate management context, this ResourceConfig is
created by the Actuator's auto-configuration and the management context
resource config customizers are applied to it during its creation. The
main application's customizers are not applied. When the actuator is
using the same context as the main application, this ResourceConfig is
created by the main application. In this case a
ResourceConfigCustomizer is defined that delegates to all
ManagementContextResourceConfigCustomizers, allowing them to register
the actuator endpoints with the main ResourceConfig.

Fixes gh-25262

Closes gh-25447

* gh-25446:
  Split DeploymentIntegrationTests by container
  Rename DeploymentIntegrationTests

Closes gh-25446

Prior to this commit, every test started a new testcontainer. By splitting the
tests apart we can make use of static containers that are only instantiated once
per application (TomEE, Wildfly etc.)

See gh-25446

See gh-25446

Closes gh-25440

* gh-25434:
  Remove spring-boot-smoke-test-jta-jndi

Closes gh-25434

See gh-25434

Closes gh-25437

* gh-25409:
  Enable stricter validation for Gradle plugin

Closes gh-25409

See gh-25409

* pr/25411:
  Fix grammatical error in documentation

Closes gh-25411

See gh-25411

Closes gh-25430

* gh-25412:
  Update Testcontainers image versions

Closes gh-25412

See gh-25412

Closes gh-25423

Closes gh-25422

Closes gh-25421

Closes gh-25420

Closes gh-25419

Closes gh-25406

Closes gh-25405

Closes gh-25393

Closes gh-25392

Closes gh-25385

* pr/25382:
  Update copyright year of changed file
  Fix wording error in build-info goal description

Closes gh-25382

See gh-25382

See gh-25382

Closes gh-25371

* pr/25353:
  Polish HTTP client metrics documentation wording

Closes gh-25353

See gh-25353

Closes gh-25363

This commit also downgrade JOSE JWT to address an incompatibility with
the OIDC SDK 8.x. The OIDC SDK has also been upgraded to the latest 8.x
release to align with the version used by Spring Security.

Closes gh-25221
Fixes gh-25070

Closes gh-25292

Closes gh-25289