[TASK] Use correct global cache key for gitlab workflows

During branching for TYPO3 v13 the GitLab workflow
cache keys has been adjusted. However, the generic
cache key has been missed. Use the correct one now.

Resolves: #103068
Releases: 12.4
Change-Id: I16a5e7e7bfbd9f1ca4c50d8057d1edfaae5b66c1
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/82831


Tested-by: Benjamin Franzke <ben@bnf.dev>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Benjamin Franzke <ben@bnf.dev>
Tested-by: core-ci <typo3@b13.com>

Build/gitlab-ci.yml

@@ -22,7 +22,7 @@ cache:
   # The default key is: "Cache everything created by a 'composer install' for main branch.
   # This means jobs using this default key should not create additional stuff in .cache
   # directory, for instance by calling a 'npm ci' or 'composer min' or similar.
-  key: main-composer
+  key: 12.4-composer
   paths:
     - .cache