Update src/validate_pyproject/plugins/__init__.py

Co-authored-by: Anderson Bravalheri <andersonbravalheri+github@gmail.com>

Author: henryiii

src/validate_pyproject/plugins/__init__.py

@@ -160,14 +160,18 @@ def list_from_entry_points(
             loaded and included (or not) in the final list. A ``True`` return means the
             plugin should be included.
     """
-    eps: List[Union[PluginWrapper, StoredPlugin]] = [
+    tool_eps = (
         load_from_entry_point(e)
         for e in iterate_entry_points("validate_pyproject.tool_schema")
         if filtering(e)
-    ]
-    for e in iterate_entry_points("validate_pyproject.multi_schema"):
-        eps.extend(load_from_multi_entry_point(e))
-    dedup = {(e.tool if e.tool else e.id): e for e in sorted(eps, key=lambda e: e.tool)}
+    )
+    multi_eps = (
+        load_from_multi_entry_point(e)
+        for e in iterate_entry_points("validate_pyproject.multi_schema")
+        if filtering(e)
+    )
+    eps = chain(tool_eps, chain.from_iterable(multi_eps))
+    dedup = {(e.tool or e.id): e for e in sorted(eps, key=lambda e: e.tool or e.id)}
     return list(dedup.values())