Lock before deleting files

As reported in FS#69614 the lock should be before the delete for when
another sync job is running rsync can't move the files as they are
removed.

roles/syncrepo/files/syncrepo-template.sh

@@ -59,12 +59,12 @@ lastupdate_url=''
 [ ! -d "${target}" ] && mkdir -p "${target}"
 [ ! -d "${tmp}" ] && mkdir -p "${tmp}"
 
-# Cleanup any temporary files from old run that might remain.
-find "${target}" -name '.~tmp~' -exec rm -r {} +
-
 exec 9>"${lock}"
 flock -n 9 || exit
 
+# Cleanup any temporary files from old run that might remain.
+find "${target}" -name '.~tmp~' -exec rm -r {} +
+
 rsync_cmd() {
 	local -a cmd=(rsync -rtlH --safe-links --delete-after ${VERBOSE} "--timeout=600" "--contimeout=60" -p \
 		--delay-updates --no-motd "--temp-dir=${tmp}")