Updates hydra: 4f9b922 Fix: hydractl: sync-media:improved lock file handling

diff --git a/hydra b/hydra
index 6b85b7f6c54b7f2451be2e003dda773aa5272a8c..4f9b92264ff69efc3a0e69d809934acaaceb4d5b 160000 (submodule)
--- a/hydra
+++ b/hydra
@@ -1 +1 @@
-Subproject commit 6b85b7f6c54b7f2451be2e003dda773aa5272a8c
+Subproject commit 4f9b92264ff69efc3a0e69d809934acaaceb4d5b