update libsignal-client to v0.40.1 in Dockerfile

Author: Bernhard B

Diff for: Dockerfile

@@ -1,5 +1,5 @@
 ARG SIGNAL_CLI_VERSION=0.13.2
-ARG LIBSIGNAL_CLIENT_VERSION=0.39.2
+ARG LIBSIGNAL_CLIENT_VERSION=0.40.1
 ARG SIGNAL_CLI_NATIVE_PACKAGE_VERSION=0.13.2+2
 
 ARG SWAG_VERSION=1.6.7