Ignore le genre inconnu dans la répartition

lib/plots/minifig_gender_share.py

@@ -17,7 +17,9 @@ def load_gender_counts(path: Path) -> List[dict]:
 
 def plot_minifig_gender_share(counts_path: Path, destination_path: Path) -> None:
     """Trace un diagramme circulaire de la répartition des minifigs par genre."""
-    rows = load_gender_counts(counts_path)
+    rows = [
+        row for row in load_gender_counts(counts_path) if row["gender"].strip().lower() in ("male", "female")
+    ]
     if not rows:
         return
     genders = [row["gender"] for row in rows]