Update Bulgaria currency from BGN to EUR

Author: silvanocerza

ipinfo/data.py

@@ -528,7 +528,7 @@
     "BD": {"code": "BDT", "symbol": "৳"},
     "BE": {"code": "EUR", "symbol": "€"},
     "BF": {"code": "XOF", "symbol": "CFA"},
-    "BG": {"code": "BGN", "symbol": "лв"},
+    "BG": {"code": "EUR", "symbol": "€"},
     "BH": {"code": "BHD", "symbol": ".د.ب"},
     "BI": {"code": "BIF", "symbol": "FBu"},
     "BJ": {"code": "XOF", "symbol": "CFA"},