fix(pkg/sync): avoid pruning goheader store (#2718)

<!--
Please read and fill out this form before submitting your PR.

Please make sure you have reviewed our contributors guide before
submitting your
first PR.

NOTE: PR titles should follow semantic commits:
https://www.conventionalcommits.org/en/v1.0.0/
-->

## Overview

<!-- 
Please provide an explanation of the PR, including the appropriate
context,
background, goal, and rationale. If there is an issue with this
information,
please provide a tl;dr and link the issue. 

Ex: Closes #<issue number>
-->

avoid pruning data and headers from store for now, we will add pruning
back in the future

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: tac0turtle

pkg/sync/sync_service.go

@@ -33,6 +33,9 @@ const (
 	dataSync   syncType = "dataSync"
 )
 
+// TODO: when we add pruning we can remove this
+const ninetyNineYears = 99 * 365 * 24 * time.Hour
+
 // SyncService is the P2P Sync Service for blocks and headers.
 //
 // Uses the go-header library for handling all P2P logic.
@@ -388,6 +391,7 @@ func newSyncer[H header.Header[H]](
 ) (*goheadersync.Syncer[H], error) {
 	opts = append(opts,
 		goheadersync.WithMetrics(),
+		goheadersync.WithPruningWindow(ninetyNineYears),
 	)
 	return goheadersync.NewSyncer(ex, store, sub, opts...)
 }