move the new sql to patch8.sql

db/patch8.sql

@@ -0,0 +1,7 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor
+    ADD dns_last_result VARCHAR(255);
+
+COMMIT;

server/database.js

@@ -6,7 +6,7 @@ class Database {
 
     static templatePath = "./db/kuma.db"
     static path = "./data/kuma.db";
-    static latestVersion = 7;
+    static latestVersion = 8;
     static noReject = true;
     static sqliteInstance = null;