fix sudo permissions for cube build script

neutrinet_cube_install.sh

@@ -609,7 +609,7 @@ function create_hypercube_file() {
     if confirm $"Would you like to import the VPN certificates from a directory?" "y"
     then
       read -e -r -p $"Enter your VPN certificates' location: " VPN_CERTIFICATES_LOCATION
-      if import_vpn_certificates $VPN_CERTIFICATES_LOCATION
+      if import_vpn_certificates "$VPN_CERTIFICATES_LOCATION"
       then
         location_has_error=false
       fi
@@ -788,8 +788,8 @@ function download_image() {
     debug $"Building internetcube image..."
     check_sudo
     sudo chmod u+x $CUBE_BUILD_SCRIPT_NAME
-    "./$CUBE_BUILD_SCRIPT_NAME" "$ynh_image"
-    rm -rf $CUBE_BUILD_SCRIPT_DIR
+    sudo "./$CUBE_BUILD_SCRIPT_NAME" "$ynh_image"
+    rm -rf "$CUBE_BUILD_SCRIPT_DIR" "tmp"
   fi
 
   info $"We've got our internetcube image!"