container: install git-lfs by default

Per this error:
+ git checkout 74ff552a...
Previous HEAD position was ...
HEAD is now at 74ff552 ci: ...
This repository is configured for Git LFS but 'git-lfs' was not found on
your path. If you no..

Dockerfile

@@ -8,7 +8,7 @@ RUN dnf -y update && \
     dnf -y install dnf-plugins-core && \
     dnf -y copr enable @copr/vcs-diff-lint && \
     dnf -y copr enable @codescan/csutils && \
-    dnf install -y vcs-diff-lint git && \
+    dnf install -y vcs-diff-lint git git-lfs && \
     dnf clean all
 
 CMD /cmd