fix(metrics): websocket metrics was not being updated

[jansegre]

Motivation

Fixes #1204

Acceptance Criteria

• When setting the websocket_factory on the CliBuilder also update the manager.metrics otherwise it will remain None and not be able to observe the stats

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/websocket-metrics
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	1.51 (-7.95%) Baseline: 1.64	1.47 (97.77%)	1.80 (83.68%)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.40%. Comparing base (22ab6a8) to head (2167098).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1221      +/-   ##
==========================================
- Coverage   84.43%   84.40%   -0.04%     
==========================================
  Files         320      320              
  Lines       24564    24565       +1     
  Branches     3762     3762              
==========================================
- Hits        20740    20733       -7     
- Misses       3084     3090       +6     
- Partials      740      742       +2     

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