add composer to prepare_shop

Author: snehasreeramini

tests/github_actions/twig-component.yml

@@ -1,6 +1,17 @@
 prepare_shop:
   git:
     shop_ref: &git_shop_ref '{{ .Data.global.git.default_ref }}'
+    composer:
+      transform: |
+        {
+            "config": {
+                "github-protocols": ["https"]
+            },
+            "require": {
+              "oxid-esales/twig-admin-theme": "dev-b-7.0.x-add-workflows-OXDEV-7760"
+            }
+        }
+
 # {{ $ids := "twig-component" }}ids: {{ print $ids }}
 # {{ $org := "oxid-esales" }}organisation: {{ print $org }}
 # {{ $name := "twig-component" }}name: {{ print $name }}