fix(spells): backfill casting times for all imported spells

data/spells/owls_wisdom.json

@@ -5,6 +5,7 @@
   "range": "touch",
   "save": "will",
   "base_dc": 10,
+  "cast_time": "standard",
   "effects": [],
   "description": "The subject gains a +4 enhancement bonus to Wisdom for 1 min/level, adding the usual benefit to Wisdom-based skills, Will saves and spell DCs. Will negates (harmless). Ability-score increases are not modeled by the engine, so the spell has no mechanical effects here."
 }