feat(ios): migrate to Swift Package Manager and upgrade linphone-sdk

ios/Resources/PrivacyInfo.xcprivacy

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>NSPrivacyTrackingDomains</key>
-	<array/>
-	<key>NSPrivacyAccessedAPITypes</key>
-	<array/>
-	<key>NSPrivacyCollectedDataTypes</key>
-	<array/>
-	<key>NSPrivacyTracking</key>
-	<false/>
-</dict>
-</plist>

ios/liblinphone_flutter.podspec

@@ -13,9 +13,9 @@ libLinPhone integration library for Flutter apps
   s.license          = { :file => '../LICENSE' }
   s.author           = { 'nuark' => 'me@nuark.xyz' }
   s.source           = { :path => '.' }
-  s.source_files = 'Classes/**/*'
+  s.source_files = 'liblinphone_flutter/Sources/liblinphone_flutter/**/*'
   s.dependency 'Flutter'
-  s.ios.dependency 'linphone-sdk', '~> 5.3.4'
+  s.ios.dependency 'linphone-sdk', '~> 5.5.0'
   s.platform = :ios, '13.0'
 
   # Flutter.framework does not contain a i386 slice.

ios/liblinphone_flutter/Package.swift

@@ -0,0 +1,25 @@
+// swift-tools-version: 5.9
+
+import PackageDescription
+
+let package = Package(
+    name: "liblinphone_flutter",
+    platforms: [.iOS("15.0")],
+    products: [
+        .library(name: "liblinphone-flutter", targets: ["liblinphone_flutter"])
+    ],
+    dependencies: [
+        .package(name: "FlutterFramework", path: "../FlutterFramework"),
+        .package(url: "https://git.nuark.xyz/nuark/linphone-sdk-swift-ios.git", branch: "5.5.0-beta-2e6e6b927ce202f6948da02ea33081a52b89bf48")
+    ],
+    targets: [
+        .target(
+            name: "liblinphone_flutter",
+            dependencies: [
+                .product(name: "FlutterFramework", package: "FlutterFramework"),
+                .product(name: "linphonesw", package: "linphone-sdk-swift-ios")
+            ],
+            path: "Sources"
+        )
+    ]
+)