Upgrade windshaft to version 5.5.1

package-lock.json

@@ -4040,8 +4040,9 @@
       "integrity": "sha1-tDFbtCFKPXBY6+7okuE/ok2YsHU="
     },
     "windshaft": {
-      "version": "github:cartodb/windshaft#15a900f2a691732dd3074cc83739abd98e164655",
-      "from": "github:cartodb/windshaft#master",
+      "version": "5.5.1",
+      "resolved": "https://registry.npmjs.org/windshaft/-/windshaft-5.5.1.tgz",
+      "integrity": "sha512-Z8ChaxzBThnYCaSQsJJ5uWdNlTQRBndXvefn8DCaU8pikGfG1kcUD6IGE306MziljNDikKJC5XKf5Dmx6Awt5g==",
       "requires": {
         "@carto/cartonik": "^0.6.1",
         "@carto/mapnik": "3.6.2-carto.16",

package.json

@@ -49,7 +49,7 @@
     "step-profiler": "0.3.0",
     "turbo-carto": "0.21.2",
     "underscore": "1.6.0",
-    "windshaft": "github:cartodb/windshaft#master",
+    "windshaft": "^5.5.1",
     "yargs": "11.1.0"
   },
   "devDependencies": {