Updates hydra: 87b669d Upgrade all flatpak packages

diff --git a/hydra b/hydra
index bb873d81289eb21f67d1da1fa4d2efc204bd0dd5..87b669d7fe280c99eebd4870d5f084493552c078 160000 (submodule)
--- a/hydra
+++ b/hydra
@@ -1 +1 @@
-Subproject commit bb873d81289eb21f67d1da1fa4d2efc204bd0dd5
+Subproject commit 87b669d7fe280c99eebd4870d5f084493552c078