Electra alpha8 spec updates (#6496)

* Fix partial withdrawals count

* Remove get_active_balance

* Remove queue_entire_balance_and_reset_validator

* Switch to compounding when consolidating with source==target

* Queue deposit requests and apply them during epoch processing

* Fix ef tests

* Clear todos

* Fix engine api formatting issues

* Merge branch 'unstable' into electra-alpha7

* Make add_validator_to_registry more in line with the spec

* Address some review comments

* Cleanup

* Update initialize_beacon_state_from_eth1

* Merge branch 'unstable' into electra-alpha7

* Fix rpc decoding for blobs by range/root

* Fix block hash computation

* Fix process_deposits bug

* Merge branch 'unstable' into electra-alpha7

* Fix topup deposit processing bug

* Update builder api for electra

* Refactor mock builder to separate functionality

* Merge branch 'unstable' into electra-alpha7

* Address review comments

* Use copied for reference rather than cloned

* Optimise and simplify PendingDepositsContext::new

* Merge remote-tracking branch 'origin/unstable' into electra-alpha7

* Fix processing of deposits with invalid signatures

* Remove redundant code in genesis init

* Revert "Refactor mock builder to separate functionality"

This reverts commit 6d10456912.

* Revert "Update builder api for electra"

This reverts commit c5c9aca6db.

* Simplify pre-activation sorting

* Fix stale validators used in upgrade_to_electra

* Merge branch 'unstable' into electra-alpha7

consensus/state_processing/src/per_block_processing.rs

@@ -514,6 +514,7 @@ pub fn get_expected_withdrawals<E: EthSpec>(
     // Consume pending partial withdrawals
     let partial_withdrawals_count =
         if let Ok(partial_withdrawals) = state.pending_partial_withdrawals() {
+            let mut partial_withdrawals_count = 0;
             for withdrawal in partial_withdrawals {
                 if withdrawal.withdrawable_epoch > epoch
                     || withdrawals.len() == spec.max_pending_partials_per_withdrawals_sweep as usize
@@ -546,8 +547,9 @@ pub fn get_expected_withdrawals<E: EthSpec>(
                     });
                     withdrawal_index.safe_add_assign(1)?;
                 }
+                partial_withdrawals_count.safe_add_assign(1)?;
             }
-            Some(withdrawals.len())
+            Some(partial_withdrawals_count)
         } else {
             None
         };