newPayload `INVALIDATED` should be `unviableFork` (#4180)

beacon_chain/eth1/eth1_monitor.nim

@@ -300,7 +300,7 @@ template toGaugeValue(x: Quantity): int64 =
 func compute_time_at_slot(genesis_time: uint64, slot: Slot): uint64 =
   genesis_time + slot * SECONDS_PER_SLOT
 
-# https://github.com/ethereum/consensus-specs/blob/v1.2.0-rc.1/specs/phase0/validator.md#get_eth1_data
+# https://github.com/ethereum/consensus-specs/blob/v1.2.0/specs/phase0/validator.md#get_eth1_data
 func voting_period_start_time(state: ForkedHashedBeaconState): uint64 =
   let eth1_voting_period_start_slot =
     getStateField(state, slot) - getStateField(state, slot) mod

beacon_chain/gossip_processing/block_processor.nim

@@ -560,7 +560,8 @@ proc runQueueProcessingLoop*(self: ref BlockProcessor) {.async.} =
       # Every loop iteration ends with some version of blck.resfut.complete(),
       # including processBlock(), otherwise the sync manager stalls.
       if not blck.resfut.isNil:
-        blck.resfut.complete(Result[void, BlockError].err(BlockError.Invalid))
+        blck.resfut.complete(
+          Result[void, BlockError].err(BlockError.UnviableFork))
     else:
       self[].processBlock(
         blck,

beacon_chain/spec/light_client_sync.nim

@@ -179,7 +179,7 @@ func apply_light_client_update(
     didProgress = true
   didProgress
 
-# https://github.com/ethereum/consensus-specs/blob/v1.2.0-rc.3/specs/altair/light-client/sync-protocol.md#process_light_client_store_force_update
+# https://github.com/ethereum/consensus-specs/blob/v1.2.0/specs/altair/light-client/sync-protocol.md#process_light_client_store_force_update
 type
   ForceUpdateResult* = enum
     NoUpdate,