autotests: Remove cursor.cpp from test framework sources

It's included because of InputConfig, but we don't need to include
cursor.cpp for this purpose.

autotests/integration/CMakeLists.txt

@@ -22,8 +22,6 @@ qt6_generate_wayland_protocol_client_sources(KWinIntegrationTestFramework
 )
 
 target_sources(KWinIntegrationTestFramework PRIVATE
-    ../../src/cursor.cpp
-
     generic_scene_opengl_test.cpp
     kwin_wayland_test.cpp
     test_helpers.cpp

src/cursor.h

@@ -308,7 +308,7 @@ private:
     int m_cursorHideCounter = 0;
 };
 
-class InputConfig
+class KWIN_EXPORT InputConfig
 {
 public:
     KSharedConfigPtr inputConfig() const