fix: re-sync on drifted head + sentry alert

[rodrigo-o]

Motivation

We had an issue with the node stopping without addition information nor any errors on sight, we want to add an alert related to it that can be picked up by Sentry.

Description

This PR adds an Alert for when state transitions stop and the head start to drift. This is accomplished using the already present :syncing keyword in the LibP2PPort state and just error when we detect the first time the head drifted by a predefined amount, now set to 12.

It also deals with a small change needed to run the block_processing.exs file after the addition of the StoreStatesSupervisor.

After reproducing #1333 in a Sepolia run in my local machine I was able to resume execution when re-dyncing, now it might solved.

Resolves #1333 (We need to validate this live and reopen the issue if it happens again)

[rodrigo-o]

While doing a small performance check I was able to encounter a very similar issue to the one reported in #1333, I was running the node and it suddenly stoped for some minutes. Just restarting it solved the issue, because the Sync kicked in, following that logic i added a quick work-arround to re-sync when the drift happens, this proved to work as expected in a test and might be able to avoid #1333 in the future. Unfortunately we'll need to monitor this changes live and make sure the issue actually stopped. Here is a small log output showing how it worked in a simple scenario of a small delay.

INFO 19:12:48.001 Pruning states before slot 190875 
INFO 19:12:48.001 [StateDb] Pruning started. slot=6108000
INFO 19:12:48.002 [BlockDb] Pruning started. slot=6108000
INFO 19:12:48.004 [BlobDb] Pruning started. slot=5976928
INFO 19:12:48.004 [BlobDb] Pruning finished. 0 blobs removed. 
INFO 19:12:48.005 [Libp2p] Slot transition slot=6108064
INFO 19:12:48.014 [BlockDb] Pruning finished. 45 blocks removed. 
INFO 19:12:48.019 [StateDb] Pruning finished. 45 states removed. 
INFO 19:13:00.002 [Libp2p] Slot transition slot=6108065
INFO 19:13:00.811 [Gossip] Block received, block.slot: 6108065. 
INFO 19:13:12.002 [Libp2p] Slot transition slot=6108066
ERROR 19:13:12.002 [Libp2p] Head slot drifted by 4 slots. 
INFO 19:13:12.717 [Optimistic sync] Performing optimistic sync between slots 6108063 and 6108066, for a total of 4 slots. 
INFO 19:13:12.719 [Optimistic sync] Sending request for slots 6108063 to 6108066 (request size = 4). 
INFO 19:13:12.719 [Optimistic Sync] Blocks remaining: 4 
INFO 19:13:12.719 [Gossip] Block received, block.slot: 6108066. 
INFO 19:13:24.004 [Libp2p] Slot transition slot=6108067
INFO 19:13:29.988 [Optimistic Sync] Range 6108063 - 6108066 downloaded successfully, with 4 blocks and 0 missing. 
INFO 19:13:30.008 [Optimistic Sync] Sync completed. Subscribing to gossip topics. 
INFO 19:13:31.017 [ForkChoice] Adding new block slot=6108063 root=0x2be..1e90
INFO 19:13:31.296 [ForkChoice] Block applied in 0.272316s 
INFO 19:13:31.301 [ForkChoice] Block processed in 0.283755s 
INFO 19:13:31.301 [ForkChoice] Block processed. Recomputing head. 
INFO 19:13:31.399 [ForkChoice] Head recomputed in 0.09851s 
INFO 19:13:31.400 [ForkChoice] Added new block slot=6108063 root=0x2be..1e90
INFO 19:13:31.400 [ForkChoice] Recomputed head slot=6108063 root=0x2be..1e90
INFO 19:13:31.400 [ForkChoice] Block added in 0.383s 
INFO 19:13:36.002 [Libp2p] Slot transition slot=6108068
INFO 19:13:38.758 [Gossip] Block received, block.slot: 6108068. 
INFO 19:13:42.249 [ForkChoice] Adding new block slot=6108064 root=0x2eb..be63

[Arkenan]

LGTM