Add dangerzone to toolbox image

toolbox/Containerfile

@@ -12,9 +12,11 @@ ADD static-repos/kubernetes.repo /etc/yum.repos.d/kubernetes.repo
 ADD https://rpm.releases.hashicorp.com/fedora/hashicorp.repo /etc/yum.repos.d/hashicorp.repo
 ADD https://cli.github.com/packages/rpm/gh-cli.repo /etc/yum.repos.d/github-cli.repo
 ADD https://download.docker.com/linux/fedora/docker-ce.repo /etc/yum.repos.d/docker-ce.repo
+ADD https://packages.freedom.press/yum-tools-prod/dangerzone/dangerzone.repo /etc/yum.repos.d/dangerzone.repo
 
 RUN dnf install --assumeyes \
   bind-utils \
+  dangerzone \
   direnv \
   docker-ce-cli \
   docker-buildx-plugin \