Adjusted the naming of the library in the Package file.

Tests/PlaydateKit/MockPlaydate.swift

@@ -9,7 +9,7 @@
 //
 
 import CPlaydate
-@testable import PlayDate
+@testable import PlaydateKit
 
 enum Mock {
     // MARK: - Stable API allocations

Tests/PlaydateKit/PlaydateKitTests.swift

@@ -1,5 +1,5 @@
 import Testing
-@testable import PlayDate
+@testable import PlaydateKit
 
 // Most of the binding requires a running Playdate (the API struct is handed
 // to the game at launch), so these tests cover the pure value types and the

Tests/PlaydateKit/WrapperTests.swift

@@ -10,7 +10,7 @@
 
 import CPlaydate
 import Testing
-@testable import PlayDate
+@testable import PlaydateKit
 
 @Suite(.serialized)
 struct WrapperTests {