[API Bug] Cancelling `EntityPushedByEntityAttackEvent` does not stop entities from Wind Burst explosions from being knocked back

Expected behavior

When a player uses a mace enchanted with Wind Burst in a group of entities, causing an explosion, and the EntityPushedByEntityAttackEvent is called for each entity, cancelling it should stop the entities from being knocked back.

Observed/Actual behavior

When a player uses a mace enchanted with Wind Burst in a group of entities, causing an explosion, and the EntityPushedByEntityAttackEvent is called for each entity, cancelling it does not stop the entities from being knocked back.

Steps/models to reproduce

1. Set up a plugin with a listener for EntityPushedByEntityAttackEvent which cancels it
2. Get a mace and enchant it with Wind Burst 3
3. Set up a group of mobs all near each other
4. Fall from a few blocks, and hit one of the mobs on the way down, causing a Wind Burst explosion
5. Observe as the entities get knocked back, despite the event being cancelled

Plugin and Datapack List

Only the plugin with the EntityPushedByEntityAttackEvent listener.

Paper version

[16:39:28 INFO]: Checking version, please wait...
[16:39:28 INFO]: This server is running Paper version 1.21.8-60-main@29c8822 (2025-09-06T21:49:13Z) (Implementing API version 1.21.8-R0.1-SNAPSHOT)
You are running the latest version
Previous version: 1.21.8-29-3d1425f (MC: 1.21.8)

Use EntityPushedByEntityAttackEvent dispatch and the Wind Burst explosion behavior as the entry points; the issue names no files or tests, so locate where explosion knockback is applied after the event is called. Reproduce with a cancelling listener and a Wind Burst 3 mace, then verify that cancelling prevents every affected entity from being knocked back.