Closes gh-15160

Closes gh-15159

See gh-15158

See gh-15158

Fix `curl` to follow redirects and use the correct `strip` variable.

See gh-15158

Update the download URLs to archives that include the `javadoc` binary.

See gh-15158

Update docker-lib.sh to deal with the latest docker CLI changes.

See gh-15158

Update the modified docker image build to use the local docker-lib.sh
file rather than grabbing it from the concourse github.

See gh-15158

Update the CI image process to build from a tagged ubuntu release. All
images now make use of a shared setup script to install the appropriate
binaries.

Closes gh-15158

See gh-15134

Closes gh-15123

* pr/15081:
  Polish contribution
  Update documentation to remind how JobParameters should be specified

Closes gh-15081

See gh-15081

Closes gh-15065

* pr/15060:
  Polish "Update docs to Spock 1.2"
  Update docs to Spock 1.2

Closes gh-15060

See gh-15060

See gh-15056

See gh-15058

Closes gh-15058

Closes gh-15056

Closes gh-15050

* pr/15033:
  Simplify ArrayList calling addAll() immediately

Closes gh-15033

* pr/15049:
  Polish EnableConfigurationPropertiesImportSelector javadoc

Closes gh-15049

This reverts commit 4630c229.

Change the `RemoteApplicationLauncher` to use a random port and also
protect against an NPE if the launch fails.

Closes gh-14854

Closes gh-15004

* gh-14975:
  Use MeterRegistry.isClosed() for tests

Closes gh-14975

Closes gh-14994

Closes gh-14997

Closes gh-14996

Closes gh-14995

Closes gh-14920