Added a variable declaration in SQL script

bin/make_admin.sql

@@ -1,5 +1,7 @@
 PRAGMA foreign_keys = ON;
 
+DECLARE @email_address varchar = 'admin@sukaato.moe';
+
 INSERT INTO users (
     username,
     password,
@@ -9,6 +11,6 @@ INSERT INTO users (
 VALUES (
     'root',
     '$argon2id$v=19$m=256,t=1,p=4$JRuXmK5RvRJvvpvpWIF2UA$0uf3V1FHaIVmCgp2JfF+Mfrm66ihKXhKkf0RN820y/k',
-    'admin@sukaato.moe',
+    @email_address,
     '[15, 15, 15, 15, 15, 15]'
 );