LibGfx: Misc 32-bit build fixes

Author: https://github.com/bugaevc
Commit: 8ebddc1ff6
Pull-request: https://github.com/SerenityOS/serenity/pull/20957
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/Hendiadyoin1

Userland/Libraries/LibGfx/ImageFormats/JPEGXLLoader.cpp

@@ -1333,7 +1333,7 @@ private:
 
         auto const result = ((token << n | TRY(stream.read_bits(n))) << config.lsb_in_token) | low_bits;
 
-        VERIFY(result < (1ul << 32));
+        VERIFY(result < (1ull << 32));
 
         return result;
     }