build: Use dnf-utils
Turns out e.g. `reposync` was ported.
@@ -6,7 +6,7 @@ set -xeuo pipefail
# createrepo_c+yum-utils is used for managing rojig bits.
yum -y install rpm-ostree make cargo golang git jq \
rsync pygobject3-base python3-gobject-base \
- createrepo_c yum-utils
+ createrepo_c dnf-utils
mkdir -p /usr/app/
cd /usr/app/
