eth/catalyst, miner: deduplicate work + show payload id (#26115)

This PR now also includes a fix to the problem of mult-routines building blocks on the same input. This PR works as before with regards to stopping the work, but it just will not spin up a second routine if one is already building. So if the CL does N calls to FCU+buildblock, and N calls to GetPayload, only the first of each will do something, the other calls will be mostly no-ops.

This PR also adds printout of the payload id into the logs.

eth/catalyst/api_test.go

@@ -184,7 +184,12 @@ func TestEth2PrepareAndGetPayload(t *testing.T) {
 	}
 	// give the payload some time to be built
 	time.Sleep(100 * time.Millisecond)
-	payloadID := computePayloadId(fcState.HeadBlockHash, &blockParams)
+	payloadID := (&miner.BuildPayloadArgs{
+		Parent:       fcState.HeadBlockHash,
+		Timestamp:    blockParams.Timestamp,
+		FeeRecipient: blockParams.SuggestedFeeRecipient,
+		Random:       blockParams.Random,
+	}).Id()
 	execData, err := api.GetPayloadV1(payloadID)
 	if err != nil {
 		t.Fatalf("error getting payload, err=%v", err)