Update windshaft and send more metrics

lib/stats/reporter/renderer.js

@@ -19,7 +19,7 @@ RendererStatsReporter.prototype.start = function () {
         const rendererStats = this.rendererCache.getStats();
 
         for (let [stat, value] of rendererStats) {
-            if (stat === 'rendercache.count') {
+            if (stat.startsWith('rendercache')) {
                 global.statsClient.gauge(`windshaft.${stat}`, value);
             } else {
                 global.statsClient.gauge(`windshaft.mapnik-${stat}`, value);

package-lock.json

@@ -6618,7 +6618,7 @@
       "integrity": "sha1-tDFbtCFKPXBY6+7okuE/ok2YsHU="
     },
     "windshaft": {
-      "version": "github:cartodb/windshaft#3bf298758e1c3a6330506190df4833038b1a101f",
+      "version": "github:cartodb/windshaft#89e4929f6c443e7a2dc62fc6b02f009cfd0043da",
       "from": "github:cartodb/windshaft#get-tile-promises",
       "requires": {
         "@carto/cartonik": "github:cartodb/cartonik#preview-promises",