Restore metal3-dev-env file (openshift-metal3#1577)

I'm finding after the change openshift-metal3#1573
to workaround the upgrade issue that running 'make clean; make agent' fails with
the error:
+(utils.sh:294): sync_repo_and_patch(): git checkout main
Already on 'main'
M	vm-setup/roles/packages_installation/tasks/centos_required_packages.yml
Your branch is behind 'origin/main' by 454 commits, and can be fast-forwarded.
  (use "git pull" to update your local branch)

This PR restores the file.

ocp_cleanup.sh

@@ -74,3 +74,6 @@ fi
 # Cleanup chrony configuration
 sudo sed -ie '/^allow /d' /etc/chrony.conf
 
+# Restore file after workaround
+cd ${METAL3_DEV_ENV_PATH}
+git checkout vm-setup/roles/packages_installation/tasks/centos_required_packages.yml