fix tests

Author: kylebrowning

.github/workflows/swift.yml

@@ -4,21 +4,21 @@ on:
 jobs:
   focal:
     container:
-      image: swiftlang/swift:nightly-6.0-focal
+      image: swift:6.2-bookworm
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v1
     - run: swift test
   thread:
     container:
-      image: swiftlang/swift:nightly-6.0-focal
+      image: swift:6.2-bookworm
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v1
     - run: swift test --sanitize=thread
   address:
     container:
-      image: swiftlang/swift:nightly-6.0-focal
+      image: swift:6.2-bookworm
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v1

Sources/APNS/APNSBroadcastClient.swift

@@ -24,7 +24,7 @@ import NIOTLS
 import NIOPosix
 
 /// A client for managing Apple Push Notification broadcast channels.
-public final class APNSBroadcastClient<Decoder: APNSJSONDecoder, Encoder: APNSJSONEncoder>: APNSBroadcastClientProtocol {
+public final class APNSBroadcastClient<Decoder: APNSJSONDecoder & Sendable, Encoder: APNSJSONEncoder & Sendable>: APNSBroadcastClientProtocol {
 
     /// The broadcast environment to use.
     private let environment: APNSBroadcastEnvironment