[TMP][CI] Required SF 6 dev branch of ibexa/solr

Author: alongosz

.github/workflows/ci.yaml

@@ -214,8 +214,10 @@ jobs:
                   coverage: none
 
             - name: Add solr dependency
+              env:
+                  COMPOSER_ROOT_VERSION: dev-ibx-8470-symfony-6
               run: |
-                VERSION=$(jq -r '.extra | ."branch-alias" | ."dev-main"' < composer.json)
+                VERSION='dev-ibx-8470-symfony-6 as 5.0.x-dev'
                 composer require --no-update "ibexa/solr:$VERSION"
 
             - uses: ramsey/composer-install@v3