Makes some changes to anonymize some of the VPN metadata (#782)

Task/Issue URL: https://app.asana.com/0/0/1207087903608440/f
iOS PR: duckduckgo/iOS#2750
macOS PR: duckduckgo/macos-browser#2634
What kind of version bump will this require?: Major/Minor/Patch

## Description

Replace available interfaces in VPN metadata

Sources/NetworkProtection/Diagnostics/NetworkProtectionTunnelFailureMonitor.swift

@@ -157,7 +157,17 @@ extension Network.NWPath {
             description += "unsatisfiedReason: \(unsatisfiedReason), "
         }
 
-        description += "availableInterfaces: \(availableInterfaces), "
+        let tunnelCount = availableInterfaces.filter { interface in
+            interface.type == .other && interface.name.contains("utun")
+        }.count
+
+        let dnsCount = availableInterfaces.filter { interface in
+            interface.type == .other && interface.name.contains("dns")
+        }.count
+
+        description += "mainInterfaceType: \(String(describing: availableInterfaces.first?.type)), "
+        description += "tunnelInterfaceCount: \(tunnelCount), "
+        description += "dnsInterfaceCount: \(dnsCount)), "
         description += "isConstrained: \(isConstrained ? "true" : "false"), "
         description += "isExpensive: \(isExpensive ? "true" : "false")"
         description += ")"