bump to latest libxmtp

LibXMTP.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'LibXMTP'
-  s.version          = '0.5.7-beta3'
+  s.version          = '0.5.7-beta4'
   s.summary          = 'XMTP shared Rust code that powers cross-platform SDKs'
 
   s.homepage         = 'https://github.com/xmtp/libxmtp-swift'
@@ -10,7 +10,7 @@ Pod::Spec.new do |s|
   s.platform         = :ios, '14.0', :macos, '11.0'
   s.swift_version    = '5.3'
 
-  s.source       = { :http => "https://github.com/xmtp/libxmtp/releases/download/swift-bindings-28f5f61/LibXMTPSwiftFFI.zip", :type => :zip }
+  s.source       = { :http => "https://github.com/xmtp/libxmtp/releases/download/swift-bindings-2864619/LibXMTPSwiftFFI.zip", :type => :zip }
   s.vendored_frameworks = 'LibXMTPSwiftFFI.xcframework'
   s.source_files = 'Sources/LibXMTP/**/*'
 end

Package.swift

@@ -27,8 +27,8 @@ let package = Package(
         ),
         .binaryTarget(
             name: "LibXMTPSwiftFFI",
-            url: "https://github.com/xmtp/libxmtp/releases/download/swift-bindings-28f5f61/LibXMTPSwiftFFI.zip",
-            checksum: "9e059d73289d4dda4c2fd74e555d03d90f962774ed26f5faa62e351086d2f7fe"
+            url: "https://github.com/xmtp/libxmtp/releases/download/swift-bindings-2864619/LibXMTPSwiftFFI.zip",
+            checksum: "5c0fa357b4675f860b61bb4b1e956a7f3bb153a22d27fbe2f74b7635875ae8e7"
         ),
         .testTarget(name: "LibXMTPTests", dependencies: ["LibXMTP"]),
     ]

Sources/LibXMTP/libxmtp-version.txt

@@ -1,3 +1,3 @@
-Version: 28f5f611
+Version: 28646190
 Branch: main
-Date: 2024-08-19 19:44:34 +0000
+Date: 2024-08-20 18:09:12 +0000