Add new repository link for roo_locale (#7100)

Author: dejwk

repositories.txt

@@ -2206,6 +2206,7 @@ https://github.com/dejwk/roo_flags
 https://github.com/dejwk/roo_icons
 https://github.com/dejwk/roo_io
 https://github.com/dejwk/roo_io_arduino
+https://github.com/dejwk/roo_locale
 https://github.com/dejwk/roo_logging
 https://github.com/dejwk/roo_material_icons
 https://github.com/dejwk/roo_onewire