[8.11] Update IronBank BASE_IMAGE with ironbank prefix (#172095) (#17…

…2227)

# Backport

This will backport the following commits from `main` to `8.11`:
- [Update IronBank BASE_IMAGE with ironbank prefix
(#172095)](#172095)

<!--- Backport version: 8.9.7 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT
[{"author":{"name":"Jon","email":"[email protected]"},"sourceCommit":{"committedDate":"2023-11-29T23:35:10Z","message":"Update
IronBank BASE_IMAGE with ironbank prefix (#172095)\n\nThis supports
local testing. It should not be included in\r\nhardening_manifest.yml,
which injects the scope at runtime.\r\n\r\nPrompted
by\r\nhttps://repo1.dso.mil/dsop/elastic/elasticsearch/elasticsearch/-/merge_requests/140#note_1690926\r\nDocumentation\r\nhttps://docs-ironbank.dso.mil/hardening/choosing-base-image/","sha":"99f51922b8b041f87d0294c0d70eda138b46a8d4","branchLabelMapping":{"^v8.12.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["Team:Operations","release_note:skip","backport:all-open","v8.12.0"],"number":172095,"url":"https://github.com/elastic/kibana/pull/172095","mergeCommit":{"message":"Update
IronBank BASE_IMAGE with ironbank prefix (#172095)\n\nThis supports
local testing. It should not be included in\r\nhardening_manifest.yml,
which injects the scope at runtime.\r\n\r\nPrompted
by\r\nhttps://repo1.dso.mil/dsop/elastic/elasticsearch/elasticsearch/-/merge_requests/140#note_1690926\r\nDocumentation\r\nhttps://docs-ironbank.dso.mil/hardening/choosing-base-image/","sha":"99f51922b8b041f87d0294c0d70eda138b46a8d4"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v8.12.0","labelRegex":"^v8.12.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/172095","number":172095,"mergeCommit":{"message":"Update
IronBank BASE_IMAGE with ironbank prefix (#172095)\n\nThis supports
local testing. It should not be included in\r\nhardening_manifest.yml,
which injects the scope at runtime.\r\n\r\nPrompted
by\r\nhttps://repo1.dso.mil/dsop/elastic/elasticsearch/elasticsearch/-/merge_requests/140#note_1690926\r\nDocumentation\r\nhttps://docs-ironbank.dso.mil/hardening/choosing-base-image/","sha":"99f51922b8b041f87d0294c0d70eda138b46a8d4"}}]}]
BACKPORT-->

Co-authored-by: Jon <[email protected]>

src/dev/build/tasks/os_packages/docker_generator/templates/ironbank/Dockerfile

@@ -3,7 +3,7 @@
 # Extract Kibana and make various file manipulations.
 ################################################################################
 ARG BASE_REGISTRY=registry1.dso.mil
-ARG BASE_IMAGE=redhat/ubi/ubi9
+ARG BASE_IMAGE=ironbank/redhat/ubi/ubi9
 ARG BASE_TAG=9.3
 
 FROM ${BASE_REGISTRY}/${BASE_IMAGE}:${BASE_TAG} as prep_files