Update version to 4.0.0

[bvdmitri]

PR for new breaking release

[codecov]

Codecov Report

Attention: Patch coverage is 54.10765% with 162 lines in your changes missing coverage. Please review.

Project coverage is 79.82%. Comparing base (fffbe65) to head (225903f).
Report is 63 commits behind head on main.

Files with missing lines	Patch %	Lines
src/telemetry.jl	3.96%	121 Missing ⚠️
src/session.jl	72.50%	33 Missing ⚠️
src/inference/inference.jl	91.91%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #426      +/-   ##
==========================================
- Coverage   84.05%   79.82%   -4.24%     
==========================================
  Files          20       23       +3     
  Lines        1587     1933     +346     
==========================================
+ Hits         1334     1543     +209     
- Misses        253      390     +137     

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