Add check for properly set severity

[jamacku]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 15.09434% with 45 lines in your changes missing coverage. Please review.

Project coverage is 15.09%. Comparing base (40df6b9) to head (31ecb8c).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/action.ts	0.00%	18 Missing ⚠️
src/bugzilla.ts	5.55%	17 Missing ⚠️
src/jira.ts	46.66%	8 Missing ⚠️
src/config.ts	0.00%	1 Missing ⚠️
src/schema/config.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #109      +/-   ##
==========================================
+ Coverage   15.07%   15.09%   +0.02%     
==========================================
  Files          11       11              
  Lines         723      775      +52     
  Branches       34       35       +1     
==========================================
+ Hits          109      117       +8     
- Misses        608      652      +44     
  Partials        6        6              

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