Update the NETCONF stack

Sysrepo has been updated, and their locking mechanism has changed; now
it creates directories below /dev/shm/ which our test wrappers could not
delete via a simple `rm`. These commits are relevant:

- https://github.com/sysrepo/sysrepo/commit/d4b874d17d54811fc93ea459689eb58f3e11d697
- https://github.com/sysrepo/sysrepo/commit/c226ab112470fc4be7718f7c84f9604ddf49ff65

Depends-on: https://cesnet-gerrit-czechlight/c/CzechLight/dependencies/+/3357
Depends-on: https://cesnet-gerrit-public/c/CzechLight/dependencies/+/3357
Depends-on: https://gerrit.cesnet.cz/c/CzechLight/dependencies/+/3357
Depends-on: https://gerrit.cesnet.cz/c/CzechLight/cla-sysrepo/+/3358
Change-Id: I3b338e56e67ac49c12650f6eb655a5e7c5e1be40
diff --git a/submodules/dependencies b/submodules/dependencies
index 20278cf..ce9bfb2 160000
--- a/submodules/dependencies
+++ b/submodules/dependencies
@@ -1 +1 @@
-Subproject commit 20278cf9b342cc5ac1dc6b25c2523aae6c52de8a
+Subproject commit ce9bfb2be9d73cd18e2cac74302e3f429aab3aa0
diff --git a/tests/cleanup_datastore.bash.in b/tests/cleanup_datastore.bash.in
index 835ab88..f5f71ac 100755
--- a/tests/cleanup_datastore.bash.in
+++ b/tests/cleanup_datastore.bash.in
@@ -32,4 +32,4 @@
 fi
 
 rm -r "$SYSREPO_REPOSITORY_PATH"
-rm "/dev/shm/$SYSREPO_SHM_PREFIX"*
+rm -rf "/dev/shm/$SYSREPO_SHM_PREFIX"*