fix: allow colon in EIP-712 type names in encodeType parser (#289)

Hyperliquid uses colon-separated type names (e.g.
"HyperliquidTransaction:Withdraw") in their EIP-712 primaryType.
The encodeType regex only accepted \w (letters, digits, underscore),
causing the parser to truncate the type name at the colon.

Widen the regex to [\w:] so that colon-containing type names are
correctly captured.

Made-with: Cursor

Author: lcastillo-ledger

src/erc7730/common/abi.py

@@ -152,7 +152,7 @@ def get_functions(abis: list[ABI], *, include_read_only: bool = False) -> Functi
     return functions
 
 
-_ENCODE_TYPE_RE = re.compile(r"(\w+)\(([^)]*)\)")
+_ENCODE_TYPE_RE = re.compile(r"([\w:]+)\(([^)]*)\)")
 
 
 def parse_encode_type(encode_type: str) -> tuple[str, dict[str, list[tuple[str, str]]]]: