fix(syncer): set timeout for head request

[vgonkivs]

Overview

Set timeout to avoid the syncer being stuck on the Head request if the other node is unresponsive.

Checklist

• [ ] New and updated code has appropriate documentation
• [ ] New and updated code has new and/or updated testing
• [ ] Required CI checks are passing
• [ ] Visual proof for any user facing features like CLI or documentation updates
• [ ] Linked issues closed with keywords

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (a5a9f28) 63.85% compared to head (89c2b8f) 63.99%. Report is 3 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #152 +/- ## ========================================== + Coverage 63.85% 63.99% +0.13% ========================================== Files 39 39 Lines 3389 3391 +2 ========================================== + Hits 2164 2170 +6 + Misses 1059 1054 -5 - Partials 166 167 +1 ```

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