In ./advanced/Scripts/database_migration/gravity-db.sh line 18:

piholeDir="${2}"
    ^-------^ SC2034 (warning): piholeDir appears unused. Verify use (or export if used externally).

Turns out it is _actually_ unused, the full path of the gravity database is passed to the function, so we'll tidy this up rather than supressing.

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

advanced/Scripts/database_migration/gravity-db.sh

@@ -13,9 +13,8 @@
 readonly scriptPath="/etc/.pihole/advanced/Scripts/database_migration/gravity"
 
 upgrade_gravityDB(){
-    local database piholeDir version
+    local database version
     database="${1}"
-    piholeDir="${2}"
 
     # Exit early if the database does not exist (e.g. in CI tests)
     if [[ ! -f "${database}" ]]; then