Implement updated bindings for hs client

[JonoPrest]

This fixes the int24 underflow issue reported by Jack on discord.

Until this: enviodev/hypersync-client-rust#34
is merged, released and updated at least in hs client node we can't merge this.

Unfortuantely the current signature model will break with collisions on event signatures (from multiple contracts) and it will break in the case that two contracts have the same event with different topic0.

So we can't include this yet.

[DZakh]

Looks good

[DZakh]

Suggested change

	let hscDecoder: ref<option<HyperSyncClient.Decoder.t>> = ref(None)
	let getHscDecoder = () =>
	switch hscDecoder.contents {
	| Some(decoder) => decoder
	| None =>
	switch HyperSyncClient.Decoder.fromSignatures(T.config.allEventSignatures) {
	| exception exn =>
	exn->ErrorHandling.mkLogAndRaise(
	~msg="Failed to instantiate a decoder from hypersync client, please double check your ABI or try using 'event_decoder: viem' config option",
	)
	| decoder => decoder
	}
	}
	let hscDecoder: HyperSyncClient.Decoder.t = switch HyperSyncClient.Decoder.fromSignatures(T.config.allEventSignatures) {
	| exception exn =>
	exn->ErrorHandling.mkLogAndRaise(
	~msg="Failed to instantiate a decoder from hypersync client, please double check your ABI or try using 'event_decoder: viem' config option",
	)
	| decoder => decoder
	}

[JonoPrest]

@DZakh I want this to be lazy and not required if viem decoder is chosen. Hence why I use a ref and a closure for a lazy instantiation/retrieval.