chore(batcher): impl default to ExecutionConfig for addition to Batch…

…erConfig

crates/batcher/src/block_builder.rs

@@ -56,6 +56,20 @@ pub struct ExecutionConfig {
     pub versioned_constants_overrides: VersionedConstantsOverrides,
 }
 
+impl Default for ExecutionConfig {
+    fn default() -> Self {
+        Self {
+            chain_info: ChainInfo::default(),
+            execute_config: TransactionExecutorConfig::default(),
+            bouncer_config: BouncerConfig::default(),
+            sequencer_address: ContractAddress::default(),
+            use_kzg_da: true,
+            tx_chunk_size: usize::default(),
+            versioned_constants_overrides: VersionedConstantsOverrides::default(),
+        }
+    }
+}
+
 #[async_trait]
 impl BlockBuilderTrait for BlockBuilder {
     async fn build_block(

crates/blockifier/src/versioned_constants.rs

@@ -853,7 +853,7 @@ pub struct ResourcesByVersion {
     pub deprecated_resources: ResourcesParams,
 }
 
-#[derive(Clone)]
+#[derive(Clone, Default)]
 pub struct VersionedConstantsOverrides {
     pub validate_max_n_steps: u32,
     pub max_recursion_depth: usize,