How to change site uuid in Drupal 8 & 9
issue:
Site UUID in source storage does not match the target storage
Solution:
you would use the following before importing config:
drush cset system.site uuid "6ba9bxxx-xxxx-438x-9c8x-e5x7x3d0x347"
Or with drupal console:
$ drupal config:override
Enter configuration name []:
> system.site
Enter the configuration key [uuid]:
> uuid
Enter the configuration value:
> 6ba9bxxx-xxxx-438x-9c8x-e5x7x3d0x347