Wayland: Fix text input not following key repeat

The manual key repeat implementation did not call text input.

(cherry picked from commit 1a7da42e6e)

src/wl_window.c

@@ -883,6 +883,8 @@ static void handleEvents(int timeout)
                                   _glfw.wl.keyboardLastScancode,
                                   GLFW_PRESS,
                                   _glfw.wl.xkb.modifiers);
+                    _glfwInputTextWayland(_glfw.wl.keyboardFocus,
+                                          _glfw.wl.keyboardLastScancode);
                 }
             }
         }