samples: nrf_auraconfig: Update link to lc3 data

- Created a folder in Artifactory so that the link will never change
- OCT-3166

Signed-off-by: Alexander Svensen <[email protected]>

Author: alexsven

doc/nrf/links.txt

@@ -1662,7 +1662,7 @@
 
 .. _`ISO 639-2 code`: https://www.loc.gov/standards/iso639-2/php/code_list.php
 
-.. _`nRF Auracast configuration files`: https://files.nordicsemi.com/ui/repos/tree/General/ncs-audio/external/nRF_Aura_Config_Audio_Files.zip
+.. _`nRF Auracast configuration files`: https://files.nordicsemi.com/ui/repos/tree/General/ncs-audio/external/nRF-Aura-Config
 
 .. ### Temp: nRF54H and nRF54L related links, repositories, and documents