This reverts commit da9d8d60.

See gh-25838

Update the common build script to pull buildpack images early using the
authenticated CLI.

See gh-25838

Closes gh-25895

Closes gh-25892

See gh-25766

Update the `ConfigData` import support to allow individual property
sources to be imported with a higher precedence than profile specific
imports.

Prior to this commit, imported sources would always have a higher
precedence than the file that imported them, but a lower precedence
than any profile-specific variant of the same file.

For example, given an `application.properties` that imports `myconfig`,
the contributor tree would be as follows:

	ROOT
	 +- `application.properties`
	 |    +- myconfig
	 +- `application-<profile>.properties`

The precedence would be:

	1) `application-<profile>.properties`
	2) myconfig
	3) `application.properties`

This works well for most situations, but can be confusing if import is
for a profile-specific property source. For example:

	ROOT
	 +- `application.properties`
	 |    +- myconfig
	 |    +- myconfig-<profile>
	 +- `application-<profile>.properties`

Results in the order precedence of:

	1) `application-<profile>.properties`
	2) myconfig-<profile>
	3) myconfig
	4) `application.properties`

This means that whilst `myconfig` overrides `application.properties`,
`myconfig-profile` does not override `application-<profile>.properties`.

For this specific situation, the preferable order would be:

	1) myconfig-<profile>
	2) `application-<profile>.properties`
	3) myconfig
	4) `application.properties`

To support this alternative ordering a new `PROFILE_SPECIFIC` config
data option has been added. Additionally, options may now be specified
on a per-source basis by using the `PropertySourceOptions` interface.

Fixes gh-25766

* pr/25882:
  Polish HealthIndicators table in docs

Closes gh-25882

`=======` was showing up in the header of the table, which should not
be there.

See gh-25882

* pr/25875:
  Polish contribution
  Polish

Closes gh-25875

See gh-25875

See gh-25875

Closes gh-25869

Fixes gh-25796

Closes gh-25866

Closes gh-25865

Closes gh-25863

* gh-25800:
  Polish "Fix no such bean definition with ancestor-defined Validator"
  Fix no such bean definition with ancestor-defined Validator

Closes gh-25800

See gh-25800

See gh-25800

Closes gh-25861

Closes gh-25859

Closes gh-25852

Closes gh-25851

Closes gh-25844

Previously, would log an error for any exception and also stop
publishing for an UnknownHostException. By constrast, Micrometer's
PushMeterRegistry treats all exceptions the same, logging a warning
and continuing with subsequent push attempts.

This commit updates the push gateway manager's behaviour to match
PushMeterRegistry. UknownHostExceptions no longer receive special
treatment and push (and delete) failures are now logged as warnings
rather than errors.

Fixes gh-25804

Closes gh-25839

This commit modifies the integration tests for the Maven and Gradle
image building goal and task to use a custom builder as a test harness
to verify that the plugins invoke the builder as expected.

Fixes gh-25838

See gh-25836

See gh-25835

Closes gh-25836

Closes gh-25835

Closes gh-25832

* gh-25621:
  Polish "Document Failsafe configuration when not using starter parent"
  Document Failsafe configuration when not using starter parent

Closes gh-25621

See gh-25621

See gh-25621

Restore the patch version number for consistency with `@since`
tags.

See gh-25808