Fix PB usage again

Co-authored-by: kjbranch <61815121+kjbranch@users.noreply.github.com>

Author: osse101

region/brinstar/green/Spore Spawn Room.json

@@ -125,6 +125,7 @@
         {"notable": "Plasma SBA Kill from Above"},
         "Plasma",
         "canSpecialBeamAttack",
+        {"ammo": {"type": "PowerBomb", "count": 1}},
         "canXRayWaitForIFrames"
       ],
       "setsFlags": ["f_DefeatedSporeSpawn"],