Add Fly.io Detection

src/technologies/f.json

@@ -924,6 +924,21 @@
     "implies": "PHP",
     "website": "https://fluxbb.org"
   },
+  "Fly.io": {
+    "cats": [
+      22
+    ],
+    "cookies": {
+      "_fly": ""
+    },
+    "headers": {
+      "fly-request-id": "",
+      "server": "^Fly/*",
+      "via": "*fly.io$"
+    },
+    "icon": "Fly.io.png",
+    "website": "https://fly.io"
+  },
   "Flyspray": {
     "cats": [
       13
@@ -1733,4 +1748,4 @@
     "scriptSrc": "/fullPage\\.js(?:/([\\d\\.]+)/)?\\;version:\\1",
     "website": "https://github.com/alvarotrigo/fullpage.js"
   }
-}
+}