Update send-annotation.js to take all kind of tags independent of category (#2031)

lib/plugins/influxdb/send-annotation.js

@@ -27,7 +27,7 @@ module.exports = {
     if (options.influxdb.tags) {
       for (var row of options.influxdb.tags.split(',')) {
         const keyAndValue = row.split('=');
-        if (keyAndValue[0] === 'category') tags += `,${keyAndValue[1]}`;
+        tags += `,${keyAndValue[1]}`;
       }
     }
     const postData = `events title="Sitespeed.io",text="${message}",tags="${tags}" ${timestamp}`;