feat: Allow overriding docker hub hostname

mentioned in commit 3e704ba6

mentioned in merge request common-template-copier!162 (merged)

mentioned in merge request gitlab-com/gl-infra/gitlab-dedicated/library/byok-status-exporter!184 (merged)

mentioned in merge request gitlab-org/modelops/applied-ml/code-suggestions/ai-assist!795 (merged)

mentioned in merge request infradev-report!116 (merged)

mentioned in merge request common-ci-tasks-images!278 (merged)

mentioned in merge request gitlab-org/modelops/ai-model-validation-and-research/ai-evaluation/prompt-library!438 (merged)

mentioned in merge request bigquery-loader!141 (merged)

mentioned in merge request jsonnet-tool!141 (merged)

mentioned in merge request terra-transformer!407 (merged)

mentioned in merge request ringctl!32 (merged)

mentioned in merge request gitlab-org/release-tools!3092 (merged)

mentioned in merge request gitlab-com/chatops!524 (closed)

mentioned in merge request gcp-quota-exporter!75 (closed)

mentioned in merge request gitlab-com/gl-infra/k8s-mgmt/clusters!20 (merged)

mentioned in merge request gitlab-com/gl-infra/platform/runway/runwayctl!350 (merged)

mentioned in merge request gitlab-com/gl-infra/platform/gitlab-issue-report-kit!44 (merged)

mentioned in merge request fluentd-docker!65 (merged)

mentioned in merge request woodhouse!408 (merged)

mentioned in merge request helicopter!31 (merged)

mentioned in merge request es-diagnostics!18

mentioned in merge request slackline!200 (closed)

mentioned in merge request gitlab-com/runbooks!7298 (merged)

mentioned in merge request gitlab-com/gl-infra/gitlab-dedicated/library/terraform/cloudwatch_log_export!167 (merged)

mentioned in merge request cmbr!273 (merged)

mentioned in merge request gitlab-com/content-sites/handbook-tools/hugolint!9 (merged)

mentioned in merge request third-party-container-images!54 (merged)

mentioned in merge request pmv!348 (merged)

mentioned in merge request asdf-promtool!53 (merged)

mentioned in merge request gitlab-com/gl-infra/gitlab-dedicated/library/terraform/terraform-gitlab-aws-oidc!34 (merged)

mentioned in merge request gitlab-org/cells/topology-service!62 (closed)

mentioned in merge request gitlab-org/modelops/applied-ml/code-suggestions/ai-assist!1587 (closed)