[actions] run vagrant unprivileged

Author: lae

.github/workflows/ci.yml

@@ -46,7 +46,8 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y libvirt-daemon libvirt-daemon-system vagrant
           sudo systemctl enable --now libvirtd
+          sudo usermod -aG libvirt ${USER}
           sudo apt-get build-dep -y vagrant ruby-libvirt
           sudo apt-get install -y --no-install-recommends libxslt-dev libxml2-dev libvirt-dev ruby-bundler ruby-dev zlib1g-dev
-          sudo vagrant plugin install vagrant-libvirt
-      - run: sudo PATH=$PIPX_BIN_DIR:$PATH vagrant up --no-tty
+          vagrant plugin install vagrant-libvirt
+      - run: sudo -E -u ${USER} PATH=$PIPX_BIN_DIR:$PATH vagrant up --no-tty