Spider Spawner Near To Spawn Point!

Hi guys! I found an awesome seed! There's a Spider Spawner around the spawn point. To found this;

1- Go to area where marked with gold blocks.(Photo 2)

2- Enter the Cave.(Photo 3)

3- Turn right and you'll see spawner. (Photo 4)

That's it. Enjoy the seed.

(In photo 5, beds are the spawn point. And the gold blocks are the cave.)

Note: Tried on version 12.1 builds. Didn't tried on ver.11.