submodules: update nightly branch

Jenkinsfile

Makefile

build.py

client-android

client-gnome

client-ios

client-macosx

client-qt

client-uwp

daemon

docker/Dockerfile_debian_10

docker/Dockerfile_debian_10_qt

docker/Dockerfile_debian_11

docker/Dockerfile_debian_testing

docker/Dockerfile_debian_testing_qt

docker/Dockerfile_debian_unstable

docker/Dockerfile_debian_unstable_qt

docker/Dockerfile_fedora_32

docker/Dockerfile_fedora_33

docker/Dockerfile_fedora_34