[TMP][CI] Switched to ibexa/core dev branch when running CI

Author: alongosz

.github/workflows/ci.yaml

@@ -80,6 +80,9 @@ jobs:
                   extensions: pdo_sqlite, gd
                   tools: cs2pr
 
+            - name: '[TMP] Require core dev branch'
+              run: composer require --no-update ibexa/core:'dev-add_missing_type_hints_to_content_vo as 5.0.x-dev'
+
             - uses: ramsey/composer-install@v3
               with:
                   dependency-versions: highest