update libxmtp to fix invalid policy error

Package.resolved

@@ -41,8 +41,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/xmtp/libxmtp-swift",
       "state" : {
-        "revision" : "c5e9ed9d3ee9de55beec4d7a8f76861c9d43230d",
-        "version" : "0.5.1-beta1"
+        "revision" : "957945a1886bce6e290a7e763866d80ec6ba475b",
+        "version" : "0.5.3-beta2"
       }
     },
     {

Package.swift

@@ -25,7 +25,7 @@ let package = Package(
 		.package(url: "https://github.com/1024jp/GzipSwift", from: "5.2.0"),
 		.package(url: "https://github.com/bufbuild/connect-swift", exact: "0.12.0"),
 		.package(url: "https://github.com/apple/swift-docc-plugin.git", from: "1.0.0"),
-		.package(url: "https://github.com/xmtp/libxmtp-swift", exact: "0.5.3-beta1"),
+		.package(url: "https://github.com/xmtp/libxmtp-swift", exact: "0.5.3-beta2"),
 	],
 	targets: [
 		// Targets are the basic building blocks of a package. A target can define a module or a test suite.

Tests/XMTPTests/GroupTests.swift

@@ -100,6 +100,8 @@ class GroupTests: XCTestCase {
 
 		XCTAssertEqual(try aliceGroup.members.count, 3)
 		XCTAssertEqual(try bobGroup.members.count, 3)
+
+        try await bobGroup.addAdmin(inboxId: fixtures.aliceClient.inboxID)
 
 		try await aliceGroup.removeMembers(addresses: [fixtures.fred.address])
 		try await bobGroup.sync()
@@ -109,6 +111,9 @@ class GroupTests: XCTestCase {
 
 		try await bobGroup.addMembers(addresses: [fixtures.fred.address])
 		try await aliceGroup.sync()
+
+        try await bobGroup.removeAdmin(inboxId: fixtures.aliceClient.inboxID)
+        try await aliceGroup.sync()
 
 		XCTAssertEqual(try aliceGroup.members.count, 3)
 		XCTAssertEqual(try bobGroup.members.count, 3)

XMTP.podspec

@@ -16,7 +16,7 @@ Pod::Spec.new do |spec|
   #
 
   spec.name         = "XMTP"
-  spec.version      = "0.12.3"
+  spec.version      = "0.12.4"
   spec.summary      = "XMTP SDK Cocoapod"
 
   # This description is used to generate tags and improve search results.
@@ -44,5 +44,5 @@ Pod::Spec.new do |spec|
   spec.dependency "web3.swift"
   spec.dependency "GzipSwift"
   spec.dependency "Connect-Swift", "= 0.12.0"
-  spec.dependency 'LibXMTP', '= 0.5.3-beta1'
+  spec.dependency 'LibXMTP', '= 0.5.3-beta2'
 end