Reject API response requiring more recent build

Passepartout/Sources/Services/Infrastructure.swift

@@ -43,6 +43,8 @@ struct Infrastructure: Codable {
         let preset: String
     }
     
+    let build: Int
+    
     let name: Name
     
     let pools: [Pool]

Passepartout/Sources/Services/InfrastructureFactory.swift

@@ -143,6 +143,14 @@ class InfrastructureFactory {
                 }
                 return
             }
+            let appBuild = GroupConstants.App.buildNumber
+            guard appBuild >= infra.build else {
+                log.error("Response requires app build >= \(infra.build) (found \(appBuild))")
+                DispatchQueue.main.async {
+                    completionHandler(nil, error)
+                }
+                return
+            }
             
             var isNewer = true
             if let bundleDate = self.bundleModificationDate(for: name) {