fix tox.ini

Author: felix314159

tox.ini

@@ -81,8 +81,8 @@ allowlist_externals =
 commands_pre =
     # Create bin directory
     mkdir -p {envdir}/bin
-    # Download solc if it doesn't exist
-    test -f {envdir}/bin/solc || curl -L -o {envdir}/bin/solc https://github.com/ethereum/solidity/releases/download/v0.8.24/solc-static-linux
+    # Download solc 0.8.24
+    curl -L -o {envdir}/bin/solc https://github.com/ethereum/solidity/releases/download/v0.8.24/solc-static-linux
     # Make it executable
     chmod +x {envdir}/bin/solc
     # Verify it works