Bug: Node's block height is not logged after applying snapshot

[capt4ce]

Description

The call for logger that logs the block height to prometheus is located in the blockPush method. Meanwhile the implementation of applying snapshot is not using blockPush. Because of this, the block height of the node that just applied a snapshot is not logged, it should wait for the node to apply blockPush on the next block.

Steps to reproduce

1. Run a node that downloads and apply a snapshot
2. Observe that in the prometheus metrics the height metric is not updated unless it applies the next block.

Expected behavior

Once a snapshot has been applied, Prometheus needs to know about the update of the blockchain state.