fix warnings

Author: swhitty

FlyingFox/Sources/HTTPDecoder.swift

@@ -58,7 +58,7 @@ struct HTTPDecoder {
             version: version,
             path: path,
             query: query,
-            headers: headers,
+            headers: HTTPHeaders(headers),
             body: body
         )
     }
@@ -81,7 +81,7 @@ struct HTTPDecoder {
         return HTTPResponse(
             version: version,
             statusCode: statusCode,
-            headers: headers,
+            headers: HTTPHeaders(headers),
             body: try await body.get()
         )
     }

FlyingFox/Sources/HTTPResponse.swift

@@ -95,6 +95,7 @@ public struct HTTPResponse: Sendable {
 @available(*, deprecated, message: "Use ``HTTPHeaders`` instead of [HTTPHeader: String]")
 public extension HTTPResponse {
 
+    @_disfavoredOverload
     init(
         version: HTTPVersion = .http11,
         statusCode: HTTPStatusCode,
@@ -109,6 +110,7 @@ public extension HTTPResponse {
         )
     }
 
+    @_disfavoredOverload
     init(
         version: HTTPVersion = .http11,
         statusCode: HTTPStatusCode,
@@ -122,7 +124,8 @@ public extension HTTPResponse {
             body: body
         )
     }
-
+    
+    @_disfavoredOverload
     init(headers: [HTTPHeader: String], webSocket handler: some WSHandler) {
         self.init(headers: HTTPHeaders(headers), webSocket: handler)
     }

FlyingFox/Sources/Handlers/FileHTTPHandler.swift

@@ -119,7 +119,7 @@ public struct FileHTTPHandler: HTTPHandler {
         }
 
         do {
-            var headers: [HTTPHeader: String] = [
+            var headers: HTTPHeaders = [
                 .contentType: contentType,
                 .acceptRanges: "bytes"
             ]

FlyingFox/Sources/Handlers/ProxyHTTPHandler.swift

@@ -85,10 +85,11 @@ public struct ProxyHTTPHandler: HTTPHandler, Sendable {
     }
 
     func makeResponse(for response: HTTPURLResponse, data: Data) -> HTTPResponse {
-        var headers = [HTTPHeader: String]()
+        var headers = HTTPHeaders()
         for (name, value) in response.allHeaderFields {
-            if let name = name as? String {
-                headers[HTTPHeader(name)] = value as? String
+            if let name = name as? String,
+               let value = value as? String {
+                headers.addValue(value, for: HTTPHeader(name))
             }
         }
         headers[.contentEncoding] = nil