fix: remove errors on exit when running devnet with --no-dashboard

[MicaiahReid]

Fixes #1309.

[codecov]

Codecov Report

Attention: 29 lines in your changes are missing coverage. Please review.

Comparison is base (abc3458) 41.19% compared to head (85f3ea8) 41.20%.

Files	Patch %	Lines
components/stacks-network/src/lib.rs	0.00%	14 Missing ⚠️
components/clarinet-cli/src/frontend/cli.rs	0.00%	8 Missing ⚠️
...omponents/stacks-network/src/chains_coordinator.rs	0.00%	5 Missing ⚠️
components/clarinet-cli/src/devnet/start.rs	0.00%	1 Missing ⚠️
components/stacks-network/src/ui/mod.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1357   +/-   ##
========================================
  Coverage    41.19%   41.20%           
========================================
  Files           86       86           
  Lines        31625    31631    +6     
========================================
+ Hits         13029    13033    +4     
- Misses       18596    18598    +2     

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[hugocaillard]

LGTM 🚀