The goblins' AC without shields is 13, making it 18 if shot at through the bushes, so Heylian's 17 barely misses.
The faster goblin will shoot Heylian, hitting with a 19 for 5 damage
It then uses a bonus action (a special ability of the agile and cowardly goblins)
to hide with a 13 on its dexterity(stealth) check. Anyone with a passive perception score of 13 or higher can still see where it went, anyone else will have to spend an action looking for it or settle with the slower goblin.
Goblin sentry 21
Goblin sentry 11
Meaning that Kovoir and Pieron are up.