process_keycode: remove direct quantum.h includes (#21486)

quantum/process_keycode/process_programmable_button.h

@@ -18,6 +18,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #pragma once
 
 #include <stdint.h>
-#include "quantum.h"
+#include <stdbool.h>
+#include "action.h"
 
 bool process_programmable_button(uint16_t keycode, keyrecord_t *record);