Rename Stocks data registration to LabID data registration.

Requires: https://sourcecode.embl.de/dma/data-management-app/-/merge_requests/488

Also requires new version of Mock API for tests

.gitlab-ci.yml

-image: python:3.12-slim-bookworm
+image: python:3.11-slim-bookworm
 
 stages: ["code-analysis","test", "build"]
 
@@ -53,11 +53,6 @@ Run tests - Python 3.11:
     extends:
       - .test
 
-Run tests - Python 3.12:
-    image: python:3.12-slim-bookworm
-    extends:
-      - .test
-
 Publish package:
     stage: build
     rules: