Fix mentions to release

During the branching the mentions to the new release were not done properly.
Fix them to allow CI to properly work.

Signed-off-by: Walter Lozano <walter.lozano@collabora.com>

.gitlab-ci.yml

 variables:
   osname: apertis
-  release: v2024dev2dev3
+  release: v2024dev2
 
 include:
   - project: tests/helper-tools
-    ref: apertis/v2024dev2dev3
+    ref: apertis/v2024dev2
     file: /gitlab-ci/update-test-binaries.yaml
 
 update-test-binaries: