fix hooks count

lib/self-upgrade.bash

@@ -55,7 +55,7 @@ function perform_upgrade {
 
   # shellcheck disable=SC1091
   if source /tmp/miaou-bash-install.sh upgrade; then
-    if [[ $(find "$backup"/hooks.d -maxdepth 1 -type f | wc -l) -gt 0 ]]; then
+    if [[ $(find "$backup"/hooks.d -maxdepth 1 -type f -not -name '.*' | wc -l) -gt 0 ]]; then
       sudo mv "$backup"/hooks.d/* "$MIAOU_BASH_DIR"/hooks.d/
       sudo miaou-bash "$MIAOU_BASH_DIR"/lib/initiate.bash
     fi