Make explicit copy of a dict instead of creating a reference to it.

PiperOrigin-RevId: 235023943
diff --git a/src/TulsiGenerator/Bazel/tulsi/tulsi_aspects.bzl b/src/TulsiGenerator/Bazel/tulsi/tulsi_aspects.bzl
index 85ec4cf..a494841 100644
--- a/src/TulsiGenerator/Bazel/tulsi/tulsi_aspects.bzl
+++ b/src/TulsiGenerator/Bazel/tulsi/tulsi_aspects.bzl
@@ -793,7 +793,7 @@
         transitive_attributes["has_swift_dependency"] = True
         swift_defines = swift_info.transitive_defines.to_list()
 
-    all_attributes = attributes
+    all_attributes = dict(attributes)
     all_attributes.update(inheritable_attributes)
     all_attributes.update(transitive_attributes)