Old Pillager Outposts in 1.18 snapshots dont work anymore

Put the summary of the bug you're having here

What I expected to happen was...:

I was at my Raid farm. I needed bad omen. Went to my pillager outpost (1.17 generated). And I expected some pillagers to spawn.

What actually happened was...:
No Pillager spawned...sad 😞 (that was in my survival world)

Steps to Reproduce:
1.Create World in 1.17 or older version
2. Go to pillager outpost....it works fine

3. Load World in 1.18...no spawns