Update prepare-for-minor-release.yml

.github/workflows/prepare-for-minor-release.yml

@@ -130,6 +130,7 @@ jobs:
         git add .github/workflows/create-release.yml
         git add .lando.yml
         git add .probo.yaml
+        git add composer.json
 
     # - name: Push required changes to new branch so we can make a pull request
     #   uses: peter-evans/create-pull-request@v5