fix(#9508): switch to ioredis (#9545)

* switch to ioredis

also need this fix in redisearch:

redis-search.js:98
```
  redisClient.multi(cmds).exec(function(err, ids) {
    if (err) {
      return callback(err);
    }
    var errRes = ids[resultIndex];
    if (errRes[0]) {
      return callback(errRes[0]);
    }
    callback(null, errRes[1]);
  });
```

* dbsearch compatible with ioredis

* fixed dbsearch?

install/package.json

@@ -85,7 +85,7 @@
         "@nodebb/bootswatch": "3.4.2",
         "nconf": "^0.11.2",
         "nodebb-plugin-composer-default": "6.5.27",
-        "nodebb-plugin-dbsearch": "4.2.0",
+        "nodebb-plugin-dbsearch": "5.0.1",
         "nodebb-plugin-emoji": "^3.5.0",
         "nodebb-plugin-emoji-android": "2.0.5",
         "nodebb-plugin-markdown": "8.12.10",
@@ -107,7 +107,7 @@
         "postcss": "8.2.15",
         "postcss-clean": "1.2.0",
         "prompt": "^1.1.0",
-        "redis": "3.1.2",
+        "ioredis": "4.27.2",
         "request": "2.88.2",
         "request-promise-native": "^1.0.9",
         "requirejs": "2.3.6",
@@ -182,4 +182,4 @@
             "url": "https://github.com/barisusakli"
         }
     ]
-}
+}