Pass in the keyrecord_t of the dual-role/tapping key when calling per-key tap hold functions (#15938)

* Replace keyp by &tapping_key in the record arg of per-key tap hold funcs

* Replace NULL by &(keyrecord_t){} in 2nd arg of get_tapping_term

quantum/process_keycode/process_tap_dance.c

@@ -173,7 +173,7 @@ void tap_dance_task() {
             tap_user_defined = action->custom_tapping_term;
         } else {
 #ifdef TAPPING_TERM_PER_KEY
-            tap_user_defined = get_tapping_term(action->state.keycode, NULL);
+            tap_user_defined = get_tapping_term(action->state.keycode, &(keyrecord_t){});
 #else
             tap_user_defined = TAPPING_TERM;
 #endif