core: infer blobGasUsed in chain maker (#28212)

Same way that the gasUsed in header is updated when a tx 
is added we should update blob gas used instead of requiring caller
to set it manually.

internal/ethapi/api_test.go

@@ -1448,9 +1448,6 @@ func setupReceiptBackend(t *testing.T, genBlocks int) (*testBackend, []common.Ha
 			b.AddTx(tx)
 			txHashes[i] = tx.Hash()
 		}
-		if i == 5 {
-			b.SetBlobGas(params.BlobTxBlobGasPerBlob)
-		}
 		b.SetPoS()
 	})
 	return backend, txHashes