fix: migration for pageHistory content column type

server/db/migrations/2.1.85.js

+/* global WIKI */
+
+exports.up = knex => {
+  return knex.schema
+    .alterTable('pageHistory', table => {
+      switch (WIKI.config.db.type) {
+        // No change needed for PostgreSQL and SQLite
+        case 'mariadb':
+        case 'mysql':
+          table.specificType('content', 'LONGTEXT').alter()
+          break
+        case 'mssql':
+          table.specificType('content', 'VARCHAR(max)').alter()
+          break
+      }
+    })
+}
+
+exports.down = knex => { }