Upgraded Mobs

Update to 1.21.4-1.21.7 (any bug fixes will only be for 1.21.6 or later)

• Makes the sound for drowned pulling you down less grating
• Makes spider web shots disappear after 3 seconds if not broken before then
• Increases elder guardian summons from 0-3 mini-guardians (50% each) to 2 guaranteed spawns + 0-2 more (50% each)
• When the evoker raid loot option is enabled, evokers will also drop the sentry armor trim found in pillager outposts
• Misc bug fixes