feat: Target latest EVM version

Author: zguesmi

hardhat.config.ts

@@ -71,13 +71,6 @@ const v8Settings = {
             },
         },
     },
-    // TODO remove this to target the latest EVM version.
-    /**
-     * @dev The 0.8.20 compiler switches the default target EVM version to Shanghai.
-     * At this time, the iExec Bellecour blockchain does not support new OPCODES
-     * brought by the Shanghai fork, hence the target must be lowered.
-     */
-    evmVersion: bellecourBaseConfig.hardfork,
 };
 
 const config: HardhatUserConfig = {