Merge pull request #2602 from Yofial/master

Add envoy to apps

src/apps.json

@@ -2954,6 +2954,17 @@
       "icon": "ensighten.png",
       "website": "https://success.ensighten.com/hc/en-us"
     },
+    "Envoy": {
+      "cats": [
+        22
+      ],
+      "icon": "Envoy.png",
+      "headers": {
+        "Server": "^envoy$",
+        "x-envoy-upstream-service-time" : ""
+      },
+      "website": "https://www.envoyproxy.io/"
+    },
     "Enyo": {
       "cats": [
         12,