example(freetype): replace the arial font with lato to avoid licensing issues

fixes https://github.com/zephyrproject-rtos/zephyr/issues/48111

examples/libs/freetype/lv_example_freetype_1.c

@@ -10,7 +10,7 @@ void lv_example_freetype_1(void)
     /*Create a font*/
     static lv_ft_info_t info;
     /*FreeType uses C standard file system, so no driver letter is required.*/
-    info.name = "./lvgl/examples/libs/freetype/arial.ttf";
+    info.name = "./lvgl/examples/libs/freetype/Lato-Regular.ttf";
     info.weight = 24;
     info.style = FT_FONT_STYLE_NORMAL;
     info.mem = NULL;