Integrate gitlab-ci/update-container-images and 2 more

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Commit: clea-os/infrastructure/gitlab-ci@12d0d7d2

[DOCKER] Hardcode the tag for clea-os-builder Docker image

It follows the different tagging scheme, so might break if we
change the CI_IMAGES_REV for images from gitlab registry

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Commit: clea-os/infrastructure/gitlab-ci@ca1a2d56

[DOCKER] Add variable for LAVA an Exein Docker images

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Commit: clea-os/infrastructure/gitlab-ci@91fe9a6d

[DOCKER] Adopt new Docker images url scheme

.gitlab-ci @ 12d0d7d2

-Subproject commit d6cac3d185f7758f2ae87c893f7add541afb7659
+Subproject commit 12d0d7d2f9a3fc8d01184c4435cb465b0762133b

.gitlab-ci.yml

@@ -4,11 +4,11 @@
 # ---------------------------------------------------------------------------------------
 include:
   - project: '${CI_PROJECT_ROOT_NAMESPACE}/infrastructure/gitlab-ci'
-    ref: d6cac3d185f7758f2ae87c893f7add541afb7659
+    ref: 12d0d7d2f9a3fc8d01184c4435cb465b0762133b
     file: 'layers-integration.yml'
 
 variables:
-  GITLAB_CI_REVISION: d6cac3d185f7758f2ae87c893f7add541afb7659
+  GITLAB_CI_REVISION: 12d0d7d2f9a3fc8d01184c4435cb465b0762133b
   # FIXME: This is only necessary due to the following GitLab limitation:
   # https://gitlab.com/gitlab-org/gitlab/-/issues/209904
   # As soon as this gets fixed upstream, the hard-coded branch name should be removed.