feat: add a bootc snapshot (#367)

Co-authored-by: bobslept <38557801+bobslept@users.noreply.github.com>

Containerfile

@@ -21,6 +21,10 @@ RUN wget https://copr.fedorainfracloud.org/coprs/ublue-os/staging/repo/fedora-$(
     /tmp/nokmods-post-install.sh && \
     # temporary fix for https://github.com/containers/podman/issues/19930
     rpm-ostree override replace https://bodhi.fedoraproject.org/updates/FEDORA-2023-8d641964bc && \
+    ## bootc 
+    wget https://copr.fedorainfracloud.org/coprs/rhcontainerbot/bootc/repo/fedora-"${FEDORA_MAJOR_VERSION}"/bootc-"${FEDORA_MAJOR_VERSION}".repo -O /etc/yum.repos.d/bootc.repo && \
+    rpm-ostree install bootc && \
+    rm -f /etc/yum.repos.d/bootc.repo && \
     rm -f /etc/yum.repos.d/_copr_ublue-os_staging.repo && \
     rm -f /etc/yum.repos.d/_copr_kylegospo_oversteer.repo && \
     rm -rf /tmp/* /var/*