fix: change immich database data directory to /srv/fast

immich/example.env

@@ -4,7 +4,7 @@
 UPLOAD_LOCATION=/srv/data/immich
 
 # The location where your database files are stored. Network shares are not supported for the database
-DB_DATA_LOCATION=/srv/var/immich/postgres
+DB_DATA_LOCATION=/srv/fast/immich/postgres
 
 # To set a timezone, uncomment the next line and change Etc/UTC to a TZ identifier from this list: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List
 TZ=Asia/Shanghai