refactor(pipelines/pingcap-qe/tidb-test): migrate hub.pingcap.net images to ghcr.io

[Copilot]

Removes all hub.pingcap.net image references from pingcap-qe/tidb-test Jenkins pipeline pod specs, replacing them with publicly accessible registry equivalents.

Image mapping

Old (hub.pingcap.net)	New
jenkins/rocky8_golang-1.23:latest	ghcr.io/pingcap-qe/ci/jenkins:v2026.1.18-8-gbb5ada9-go1.25
jenkins/centos7_golang-1.{18,19,23}:latest	ghcr.io/pingcap-qe/ci/jenkins:v2026.1.18-8-gbb5ada9-go1.25
jenkins/centos7_golang-1.16_openjdk-17.0.2_gradle-7.4.2_maven-3.8.6:cached	ghcr.io/pingcap-qe/ci/jenkins:v2026.1.18-8-gbb5ada9-go1.25 ¹
jenkins/golang-with-gcc11:1.23	ghcr.io/pingcap-qe/ci/jenkins:v2026.1.18-8-gbb5ada9-go1.25
jenkins/django-tidb-test:latest	ghcr.io/pingcap-qe/ci/jenkins:v2026.1.18-8-gbb5ada9-go1.25 ²
ee/ci/base:v20230810-go1.23.0	ghcr.io/pingcap-qe/ci/jenkins:v2026.1.18-8-gbb5ada9-go1.25 ³
tiproxy-team/mysql-client-test	ghcr.io/pingcap-qe/ci/jenkins:v2026.1.18-8-gbb5ada9-go1.25
jenkins/ruby27:latest	ruby:2.7
jenkins/network-multitool	wbitt/network-multitool
jenkins/python3-requests:latest	purelind/python3-requests:3.9.18-slim

¹ ci/jenkins includes Java 17, Gradle 7.4.2, Maven 3.8.9
² ci/jenkins includes Python 3 + pip3 (Django installable at runtime)
³ ci/jenkins includes Node.js via nsolid

Scope

• 36 pod YAML files across latest, release-6.0/6.1/6.2, release-7.1, release-8.5
• No changes to Groovy pipeline logic or prow-job configs — pod specs only
• wbitt/network-multitool and purelind/python3-requests:3.9.18-slim replacements already in use in this repo's prow-jobs

Original prompt

---

This section details on the original issue you should resolve

<issue_title>hub registry: migrate images for pingcap-qe/tidb-test</issue_title>
<issue_description>Replace hub.pingcap.net image pulls/pushes for pingcap-qe/tidb-test with a cloud-accessible registry.

Acceptance criteria:

• No hub.pingcap.net references in jobs/pipelines for pingcap-qe/tidb-test
• Image registry endpoints documented and validated
  </issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes hub registry: migrate images for pingcap-qe/tidb-test #4228

---

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[ti-chi-bot]

Hi @Copilot. Thanks for your PR.

I'm waiting for a PingCAP-QE member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[ti-chi-bot]

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