add thread-hierarchy and bitset-word8

build-constraints.yaml

@@ -3360,6 +3360,10 @@ packages:
         - webdriver
         - cond
 
+    "Naoto Shimazaki <naoto.shimazaki@gmail.com> @igy":
+        - thread-hierarchy
+        - bitset-word8
+
     # If you stop maintaining a package you can move it here.
     # It will then be disabled if it starts causing problems.
     # See https://github.com/fpco/stackage/issues/1056