Updating the MatterHub link to use the 2.6.0 version

Author: selissia

sld249-matter-prerequisites/matter-artifacts.md

@@ -10,7 +10,7 @@ https://github.com/SiliconLabs/matter_extension/releases/tag/v2.7.0
 
 The Matter Hub image is intended to be flashed onto an SD card for a Raspberry Pi. The Matter Hub image provides both an Open Thread Border Router and the Matter chip-tool. Note the image is ~7GB in size so depending on your internet connection this download may take some time. Start the Matter Hub Raspberry Pi image download here:
 
-https://www.silabs.com/documents/public/software/SilabsMatterPi_2.7.0-1.4-extension.zip
+https://www.silabs.com/documents/public/software/SilabsMatterPi_2.6.0-1.4-extension.zip
 
 ## Radio Co-Processor (RCP) Images