Adds different exit code when issues are found

[cesar-rodriguez]

This change will add an exit code of "3" whenever issues are found.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
0 Code Smells

No Coverage information
0.0% Duplication

[codecov]

Codecov Report

Merging #299 into master will decrease coverage by 0.12%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #299      +/-   ##
==========================================
- Coverage   60.08%   59.95%   -0.13%     
==========================================
  Files          48       48              
  Lines         982      984       +2     
==========================================
  Hits          590      590              
- Misses        344      346       +2     
  Partials       48       48              

Impacted Files	Coverage Δ
pkg/cli/run.go	0.00% <0.00%> (ø)

[williepaul]

Looks good and won't affect API mode. We may want to look into common behaviors (if any) and maybe trigger handlers later on if we end up needing other codes/behaviors on exit