Use --allowerase on cloud-init for centos package drift

Remove duplicate cloud-init from hack/packages.txt

Signed-off-by: Terence Lee <hone02@gmail.com>

Author: hone

hack/packages.txt

@@ -1,6 +1,5 @@
 # Needed by tmt
 rsync
-cloud-init
 /usr/bin/flock
 /usr/bin/awk
 # Needed by tmt avc check

hack/provision-derived.sh

@@ -55,7 +55,7 @@ cat <<KARGEOF >> /usr/lib/bootc/kargs.d/20-console.toml
 kargs = ["console=ttyS0,115200n8"]
 KARGEOF
 if test $cloudinit = 1; then
-  dnf -y install cloud-init
+  dnf -y install --allowerasing cloud-init
   ln -s ../cloud-init.target /usr/lib/systemd/system/default.target.wants
   # Allow root SSH login for testing with bcvk/tmt
   mkdir -p /etc/cloud/cloud.cfg.d