[new-model] Add initial Qwen-Image-2.1 inference (#1918)

Co-authored-by: Aryan Kumar <156166681+aryan5v@users.noreply.github.com>

.github/scripts/plan_merge_ci.py

@@ -131,6 +131,11 @@ class FamilyCoverage:
 
 
 FAMILY_COVERAGE = (
+    FamilyCoverage(
+        re.compile(r"(^|[/_.-])qwen[_-]?image[_-]?2[._-]?1([/_.-]|$)"),
+        ("test_qwen_image21.py", ),
+        ("test_qwen_image21_similarity.py", ),
+    ),
     FamilyCoverage(
         re.compile(r"(^|[/_.-])flux[_-]?2([/_.-]|$)"),
         ("test_flux2_klein.py", ),