Add operator fee to rpc l1 block (#420)

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## Motivation

We need to show operator fee new params in RPC receipts.

Close #419
Ref paradigmxyz/reth#14243

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## Solution

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## PR Checklist

- [ ] Added Tests
- [ ] Added Documentation
- [ ] Breaking changes

crates/rpc-types/src/receipt.rs

@@ -177,6 +177,16 @@ pub struct L1BlockInfo {
     /// Always null prior to the Ecotone hardfork.
     #[serde(default, skip_serializing_if = "Option::is_none", with = "alloy_serde::quantity::opt")]
     pub l1_blob_base_fee_scalar: Option<u128>,
+    /// Operator fee scalar.
+    ///
+    /// Always null prior to the Isthmus hardfork.
+    #[serde(default, skip_serializing_if = "Option::is_none", with = "alloy_serde::quantity::opt")]
+    pub operator_fee_scalar: Option<u128>,
+    /// Operator fee constant.
+    ///
+    /// Always null prior to the Isthmus hardfork.
+    #[serde(default, skip_serializing_if = "Option::is_none", with = "alloy_serde::quantity::opt")]
+    pub operator_fee_constant: Option<u128>,
 }
 
 impl Eq for L1BlockInfo {}