Elder guardians that are on fire do not drop dry sponges when killed

Summary:
Elder guardians that are on fire do not drop dry sponges when killed. Relates to MC-254921, MC-92294, MC-199065, MC-70738 and MC-102269. The attached loot table fixes this.

Steps to reproduce:

1. Summon a fire-resistant elder guardian that's on fire by using the command provided below. 

   /summon minecraft:elder_guardian ~ ~ ~ {Fire:999999,Health:1f,active_effects:[{duration:-1,amplifier:0b,id:"minecraft:fire_resistance"}]}

2. Kill the elder guardian.

Observed results:
Elder guardians that are on fire drop wet sponges.

Expected results:
Elder guardians that are on fire drop dry sponges.