fix(anvil): latest evm version should be prague (#10653)

* fix(`anvil`): latest evm version should be prague

* fix test

* nit

Author: yash-atreya

crates/anvil/src/cmd.rs

@@ -79,7 +79,7 @@ pub struct NodeArgs {
 
     /// The EVM hardfork to use.
     ///
-    /// Choose the hardfork by name, e.g. `cancun`, `shanghai`, `paris`, `london`, etc...
+    /// Choose the hardfork by name, e.g. `prague`, `cancun`, `shanghai`, `paris`, `london`, etc...
     /// [default: latest]
     #[arg(long)]
     pub hardfork: Option<String>,

crates/anvil/src/config.rs

@@ -525,15 +525,15 @@ impl NodeConfig {
     /// Returns the hardfork to use
     pub fn get_hardfork(&self) -> ChainHardfork {
         if self.odyssey {
-            return ChainHardfork::Ethereum(EthereumHardfork::Prague);
+            return ChainHardfork::Ethereum(EthereumHardfork::default());
         }
         if let Some(hardfork) = self.hardfork {
             return hardfork;
         }
         if self.enable_optimism {
-            return OpHardfork::Isthmus.into();
+            return OpHardfork::default().into();
         }
-        EthereumHardfork::Cancun.into()
+        EthereumHardfork::default().into()
     }
 
     /// Sets a custom code size limit

crates/anvil/tests/it/anvil_api.rs

@@ -449,7 +449,7 @@ async fn can_get_node_info() {
 
     let block_number = provider.get_block_number().await.unwrap();
     let block = provider.get_block(BlockId::from(block_number)).await.unwrap().unwrap();
-    let hard_fork: &str = SpecId::CANCUN.into();
+    let hard_fork: &str = SpecId::PRAGUE.into();
 
     let expected_node_info = NodeInfo {
         current_block_number: 0_u64,