chore(lint): Fix lint issues, assign method to Frontier to be overridden

Author: fselmo

src/ethereum_test_forks/forks/forks.py

@@ -282,6 +282,11 @@ def header_requests_required(cls, block_number: int = 0, timestamp: int = 0) ->
         """At genesis, header must not contain beacon chain requests."""
         return False
 
+    @classmethod
+    def header_bal_hash_required(cls, block_number: int = 0, timestamp: int = 0) -> bool:
+        """At genesis, header must not contain block access list hash."""
+        return False
+
     @classmethod
     def engine_new_payload_version(
         cls, block_number: int = 0, timestamp: int = 0