use new tes matrix

Author: TamaroWalter

.github/workflows/moodle-ci.yml

@@ -4,6 +4,6 @@ on: [ push, pull_request ]
 jobs:
   call:
     name: ""
-    uses: learnweb/moodle-workflows-learnweb/.github/workflows/moodle-ci.yml@improvedmatrix
+    uses: learnweb/moodle-workflows-learnweb/.github/workflows/moodle-ci.yml@main
     with:
       allow-mustache-lint-error: true