Add distributed benchmarking support and tests

[farhadrclass]

Introduces parallel execution for solver benchmarks using Julia's Distributed module. Adds a new example and test for distributed benchmarking, updates dependencies in Project.toml, and modifies bmark_solvers to support a parallel flag for running solvers concurrently across worker processes.

[farhadrclass]

@dpo I need to spend way more time on this but the nice thing of this code, it can run many cpus (I have only 1), Once I have time I will look into this

[codecov]

Codecov Report

❌ Patch coverage is 94.73684% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 86.08%. Comparing base (4c0fcd2) to head (c3b26c5).
⚠️ Report is 34 commits behind head on main.

Files with missing lines	Patch %	Lines
src/bmark_solvers.jl	94.73%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #194      +/-   ##
==========================================
+ Coverage   76.71%   86.08%   +9.37%     
==========================================
  Files          12        9       -3     
  Lines         292      309      +17     
==========================================
+ Hits          224      266      +42     
+ Misses         68       43      -25     

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