dt-deps: Bump openjdk and Keycloak

[oleiman]

openjdk: 11 -> 17
keycloak: 21 -> 23

(Maybe) Fixes #15304 on the basis that we were using an older keycloak version with a deprecated (from keycloak's standpoint) java version. By upgrading Keycloak to latest greatest and bumping openjdk to the most recent LTS version offered on Ubuntu 22.0.4, we may avoid these obscure Java errors altogether.

Backports Required

• none - not a bug fix
• none - this is a backport
• none - issue does not exist in previous branches
• none - papercut/not impactful enough to backport
• v23.3.x
• v23.2.x
• v23.1.x

Release Notes

• none

[oleiman]

/ci-repeat 1

[vbotbuildovich]

new failures in https://buildkite.com/redpanda/redpanda/builds/43446#018cd647-9533-4fd6-962e-62a0caa4428e:

"rptest.tests.recovery_mode_test.RecoveryModeTest.test_recovery_mode"

new failures in https://buildkite.com/redpanda/redpanda/builds/43446#018cd658-36f0-4caa-b470-38ecd46d5c83:

"rptest.tests.internal_topic_protection_test.InternalTopicProtectionLargeClusterTest.test_schemas_topic"

[oleiman]

CI Failures:

• CI Failure (topic missing) in InternalTopicProtectionLargeClusterTest.test_schemas_topic #15944 (known)
• https://buildkite.com/redpanda/redpanda/builds/43446#018cd647-9533-4fd6-962e-62a0caa4428e
  • Not previously logged, but seems unlikely related to bumping Java...investigating

[oleiman]

/cdt
tests/rptest/tests/redpanda_oauth_test.py

[oleiman]

/ci-repeat 1

[ivotron]

lgtm, pending green CI status checks

[oleiman]

/cdt
tests/rptest/tests/redpanda_oauth_test.py

[oleiman]

@BenPope FYI (no guarantee that this will improve things)

[oleiman]

/cdt
cdt_arch=arm64
rp_version=build
tests/rptest/tests/redpanda_oauth_test.py

[oleiman]

/cdt
cdt_arch=arm64
cdt_instance_type=is4gen.xlarge
tests/rptest/tests/redpanda_oauth_test.py