set atari st to gen4

Author: gantoine

backend/adapters/services/igdb.py

@@ -495,7 +495,7 @@ class SlugToIGDB(TypedDict):
         "category": "Computer",
         "family_name": "Atari",
         "family_slug": "atari",
-        "generation": -1,
+        "generation": 4,
         "id": 63,
         "name": "Atari ST/STE",
         "slug": "atari-st",