[M3][Catalog] Update Shape Theming bottom sheet text color

PiperOrigin-RevId: 575005367

Author: Material Design Team

catalog/java/io/material/catalog/shapetheming/res/layout/cat_shape_theming_bottomsheet_content.xml

@@ -29,7 +29,7 @@
         android:id="@+id/bottomsheet_state"
         android:layout_width="match_parent"
         android:layout_height="100dp"
-        android:textColor="?attr/colorOnPrimary"
+        android:textColor="?attr/colorOnSurface"
         android:gravity="center"
         android:textSize="20sp"
         android:text="@string/cat_shape_theming_bottomsheet_title"/>