Gloas process execution payload bid (#8355)

* add proces_execution_bid

* add has_builder_withdrawal_credential

* process_execution_payload_bid signature is infinity check for self-build

* process_execution_payload_bid updates per consensus spec v1.6.0-beta.1 release

* process_execution_bid to avoid expensive lookups for 0 amount bids

* verify builder not slashed even for self-building

beacon_node/operation_pool/src/lib.rs

@@ -582,7 +582,12 @@ impl<E: EthSpec> OperationPool<E> {
                 address_change.signature_is_still_valid(&state.fork())
                     && state
                         .get_validator(address_change.as_inner().message.validator_index as usize)
-                        .is_ok_and(|validator| !validator.has_execution_withdrawal_credential(spec))
+                        .is_ok_and(|validator| {
+                            !validator.has_execution_withdrawal_credential(
+                                spec,
+                                state.fork_name_unchecked(),
+                            )
+                        })
             },
             |address_change| address_change.as_inner().clone(),
             E::MaxBlsToExecutionChanges::to_usize(),