fix: Add hathorlib to Dockerfile

[luislhl]

Motivation

The docker build is failing with Path /app/hathorlib for hathorlib does not exist

Acceptance Criteria

• The hathorlib folder should be included in the Docker image before trying to run poetry install

Checklist

• If you are requesting a merge into master, confirm this code is production-ready and can be included in future releases as soon as it gets merged

[github-actions]

Bencher Report

Branch	fix/dockerfile-build
Testbed	ubuntu-22.04

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Benchmark	Latency	Benchmark Result minutes (m) (Result Δ%)	Lower Boundary minutes (m) (Limit %)	Upper Boundary minutes (m) (Limit %)
sync-v2 (up to 20000 blocks)	📈 view plot 🚷 view threshold	1.67 m (-3.37%) Baseline: 1.73 m	1.55 m (93.14%)	2.07 m (80.52%)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.23%. Comparing base (529ffce) to head (73bfc47).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1545      +/-   ##
==========================================
- Coverage   86.24%   86.23%   -0.02%     
==========================================
  Files         438      438              
  Lines       33744    33744              
  Branches     5270     5270              
==========================================
- Hits        29104    29100       -4     
- Misses       3626     3629       +3     
- Partials     1014     1015       +1     

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