Integrate gitlab-ci/report-image-diff-rework and 1 more

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@212a3af9

Move report_image-diff to downstream pipeline

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@cbf168eb

build:credentials: Fix error when storing credentials in cache

The credentials helper wasn't storing the credentials in the cache.
Seemingly, the echo added whitespaces at the beginning of the lines
which can't be interpreted by the git credential approve command.
Also the USERNAME was renamed to TOKEN_USER because the variable is
already filled with the system users name.

.gitlab-ci @ 212a3af9

-Subproject commit d09e3a9655559495e9aeff194e3ea44a2acdb315
+Subproject commit 212a3af923042ec24a52c738ac5ca1b0348a3de4

.gitlab-ci.yml

@@ -4,8 +4,8 @@
 # ---------------------------------------------------------------------------------------
 include:
   - project: '${CI_PROJECT_ROOT_NAMESPACE}/yocto/infrastructure/gitlab-ci'
-    ref: d09e3a9655559495e9aeff194e3ea44a2acdb315
+    ref: 212a3af923042ec24a52c738ac5ca1b0348a3de4
     file: 'manifest-integration.yml'
 
 variables:
-  GITLAB_CI_REVISION: d09e3a9655559495e9aeff194e3ea44a2acdb315
+  GITLAB_CI_REVISION: 212a3af923042ec24a52c738ac5ca1b0348a3de4