fix migration number

server/src/main/kotlin/suwayomi/tachidesk/server/database/migration/M0012_SourceIsNsfw.kt

@@ -0,0 +1,18 @@
+package suwayomi.tachidesk.server.database.migration
+
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+import de.neonew.exposed.migrations.helpers.AddColumnMigration
+
+@Suppress("ClassName", "unused")
+class M0012_SourceIsNsfw : AddColumnMigration(
+    "Source",
+    "is_nsfw",
+    "BOOLEAN",
+    "FALSE"
+)