[gha] Merge recipe-readme-update into flex-update

Author: nicolas-grekas

.github/workflows/callable-flex-update.yml

@@ -49,5 +49,7 @@ jobs:
                     git add *.json
                     cp -a .github/flex-endpoint/archived .
                     git add archived/
+                    php .github/recipes-checker-main/run generate:recipes-readme index.json ${{ inputs.contrib && '--contrib' || '' }} > RECIPES.md
+                    git add RECIPES.md
                     git commit -m 'Update Flex endpoint' || true
                     git push origin -f flex/main

.github/workflows/callable-recipe-readme-update.yml

@@ -14,7 +14,3 @@ jobs:
         uses: symfony/recipes/.github/workflows/callable-flex-update.yml@main
         with:
             versions_json: .github/versions.json
-
-    call-recipe-readme-update:
-        needs: 'call-flex-update'
-        uses: symfony/recipes/.github/workflows/callable-recipe-readme-update.yml@main