fix: encoding of XCFrameworkInfoPlist (#121)

* fix: Fix encoding of XCFrameworkInfoPlist

* feat: add unit tests for XCFrameworkInfoPlist

Author: alexanderwe

Sources/XcodeGraph/Models/XCFrameworkInfoPlist.swift

@@ -50,6 +50,7 @@ public struct XCFrameworkInfoPlist: Codable, Hashable, Equatable, Sendable {
             try container.encode(path, forKey: .path)
             try container.encode(mergeable, forKey: .mergeable)
             try container.encode(architectures, forKey: .architectures)
+            try container.encode(platform, forKey: .platform)
         }
 
         public init(

Tests/XcodeGraphTests/Models/XCFrameworkInfoPlistTests.swift

@@ -0,0 +1,14 @@
+import Foundation
+import Path
+import XCTest
+@testable import XcodeGraph
+
+final class XCFrameworkInfoPlistTests: XCTestCase {
+    func test_codable() throws {
+        // Given
+        let subject: XCFrameworkInfoPlist = .test()
+
+        // Then
+        XCTAssertCodable(subject)
+    }
+}