Fix Per Key LED Indicator Callbacks (#18450)

Co-authored-by: Dasky <32983009+daskygit@users.noreply.github.com>
Co-authored-by: Nick Brassel <nick@tzarc.org>

keyboards/gmmk/pro/rev1/ansi/keymaps/gigahawk/keymap.c

@@ -56,7 +56,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
     return false;
 }
 
-void rgb_matrix_indicators_user(void) {
+bool rgb_matrix_indicators_user(void) {
     if (IS_LAYER_ON(_TRAN)) {
         rgb_matrix_set_color_all(_TRAN_COLOR_RGB);
     } else if (IS_LAYER_ON(_GAME)) {
@@ -72,4 +72,5 @@ void rgb_matrix_indicators_user(void) {
             }
         }
     }
+    return false;
 }