Updates hydra: 4d540a2 TODO: hydra: support for cumin

diff --git a/hydra b/hydra
index 8c6972d4ffdb2e07b372f582156fd6c0bf09364b..4d540a22d728c0c8cd92ae393756682698dab914 160000 (submodule)
--- a/hydra
+++ b/hydra
@@ -1 +1 @@
-Subproject commit 8c6972d4ffdb2e07b372f582156fd6c0bf09364b
+Subproject commit 4d540a22d728c0c8cd92ae393756682698dab914