Appease mypy

Author: SheldonHolmgren

crytic_compile/platform/etherscan.py

@@ -385,7 +385,7 @@ def compile(self, crytic_compile: "CryticCompile", **kwargs: str) -> None:
 
         if "Proxy" in result and result["Proxy"] == "1":
             assert "Implementation" in result
-            implementation = result["Implementation"]
+            implementation = str(result["Implementation"])
             if prefix is not None:
                 implementation = f"{prefix}:{implementation}"
             compilation_unit.implementation_address = implementation