chore(deps): update libxmtp to ios-4.11.0-nightly.20260709.e7423ca

Author: renovate[bot]

Convos.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -27,7 +27,7 @@ let package = Package(
         .package(url: "https://github.com/groue/GRDB.swift.git", exact: "7.5.0"),
         .package(
             url: "https://github.com/xmtp/libxmtp.git",
-            revision: "ios-4.11.0-nightly.20260708.4dda49c"
+            revision: "ios-4.11.0-nightly.20260709.e7423ca"
         ),
         .package(url: "https://github.com/tesseract-one/CSecp256k1.swift.git", from: "0.2.0"),
         .package(url: "https://github.com/krzyzanowskim/CryptoSwift.git", from: "1.8.0"),

ConvosCore/Package.resolved

@@ -26,7 +26,7 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-log", from: "1.6.0"),
         .package(
             url: "https://github.com/xmtp/libxmtp.git",
-            revision: "ios-4.11.0-nightly.20260708.4dda49c"
+            revision: "ios-4.11.0-nightly.20260709.e7423ca"
         ),
         .package(path: "../ConvosAppData"),
     ],