Alias spiked_shoes/boots -> spiked_footwear

BUR #24731 has been rejected.

create alias spiked_boots -> spiked_footwear
create alias spiked_shoes -> spiked_footwear

This seems to be the trend for footwear tagging.

This bulk update request is pending automatic rejection in 5 days.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #24731 (forum #274585) has been rejected by @DanbooruBot.