fix: allow pr check on old version branches

[jBouyoud]

What Changed

Do not exit with code 1 when running prCheck on old version branches

Why

To mimic the same behavior as for main or pre-release branches

Todo:

• Add tests : Since code use exit seems hard to tests , and existing condition are not tested
• Add docs

Change Type

Indicate the type of change your pull request is:

• documentation
• patch
• minor
• major

[codecov]

Codecov Report

Merging #2388 (84a5245) into main (beeb948) will decrease coverage by 0.08%.
Report is 4 commits behind head on main.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2388      +/-   ##
==========================================
- Coverage   80.63%   80.56%   -0.08%     
==========================================
  Files          69       69              
  Lines        5670     5670              
  Branches     1272     1272              
==========================================
- Hits         4572     4568       -4     
- Misses        718      719       +1     
- Partials      380      383       +3     

Files Changed	Coverage Δ
packages/core/src/auto.ts	77.92% <ø> (ø)

... and 3 files with indirect coverage changes

[github-actions]

🚀 PR was released in v11.0.3 🚀