Fix l1_address deserialization in L2toL1MessageSchema (#1435)

* Add `ETHAddress` field

* Revert "Add `ETHAddress` field"

This reverts commit 0046dc9.

* Add `ETHAddress` field

* Update starknet_py/net/schemas/common.py

Co-authored-by: ddoktorski <45050160+ddoktorski@users.noreply.github.com>

* Update starknet_py/net/schemas/common.py

Co-authored-by: ddoktorski <45050160+ddoktorski@users.noreply.github.com>

* Fix imports

---------

Co-authored-by: ddoktorski <45050160+ddoktorski@users.noreply.github.com>

Author: franciszekjob

starknet_py/net/schemas/common.py

@@ -89,6 +89,15 @@ class Felt(NumberAsHex):
     REGEX_PATTERN = r"^0x(0|[a-fA-F1-9]{1}[a-fA-F0-9]{0,62})$"
 
 
+class EthAddress(NumberAsHex):
+    """
+    Field used to serialize and deserialize ETH address type.
+    """
+
+    MAX_VALUE = 2**160
+    REGEX_PATTERN = r"^0x[a-fA-F0-9]{40}$"
+
+
 class Uint64(NumberAsHex):
     """
     Field used to serialize and deserialize RPC u64 type.

starknet_py/net/schemas/rpc/transactions.py

@@ -27,6 +27,7 @@
 )
 from starknet_py.net.schemas.common import (
     DAModeField,
+    EthAddress,
     ExecutionStatusField,
     Felt,
     FinalityStatusField,
@@ -45,7 +46,7 @@
 
 class L2toL1MessageSchema(Schema):
     l2_address = Felt(data_key="from_address", required=True)
-    l1_address = Felt(data_key="to_address", required=True)
+    l1_address = EthAddress(data_key="to_address", required=True)
     payload = fields.List(Felt(), data_key="payload", required=True)
 
     @post_load