Wayland: Fix repeated key not released on defocus

Platform code should not generate key events with GLFW_REPEAT.
GLFW_PRESS is translated into GLFW_REPEAT by shared code based on the
key state cache.

This confused the automatic key release logic into not generating an
event with GLFW_RELEASE for a key being repeated when the window lost
input focus.

src/wl_window.c

@@ -754,7 +754,7 @@ static void handleEvents(int timeout)
                     _glfwInputKey(_glfw.wl.keyboardFocus,
                                   _glfw.wl.keyboardLastKey,
                                   _glfw.wl.keyboardLastScancode,
-                                  GLFW_REPEAT,
+                                  GLFW_PRESS,
                                   _glfw.wl.xkb.modifiers);
                 }
             }