Add Flow detection

src/technologies.json

@@ -12355,6 +12355,17 @@
       },
       "website": "https://man.openbsd.org/httpd.8"
     },
+    "Flow": {
+      "cats": [
+        6
+      ],
+      "icon": "flow.png",
+      "scripts": [
+        "shopify-cdn\\.flow\\.io",
+        "flow\\.min\\.js"
+      ],
+      "website": "https://www.flow.io/"
+    },
     "OpenCart": {
       "cats": [
         6