RHINENG-9452: refactor error handling

[psegedy]

Secure Coding Practices Checklist GitHub Link

• https://github.com/RedHatInsights/secure-coding-checklist

Secure Coding Checklist

• Input Validation
• Output Encoding
• Authentication and Password Management
• Session Management
• Access Control
• Cryptographic Practices
• Error Handling and Logging
• Data Protection
• Communication Security
• System Configuration
• Database Security
• File Management
• Memory Management
• General Coding Practices

[jira-linking]

Referenced Jiras:
https://issues.redhat.com/browse/RHINENG-9452

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 60.56338% with 28 lines in your changes missing coverage. Please review.

Project coverage is 64.98%. Comparing base (36039a2) to head (bbb08c0).
Report is 1 commits behind head on master.

Files	Patch %	Lines
listener/upload.go	67.79%	14 Missing and 5 partials ⚠️
base/mqueue/mqueue.go	25.00%	3 Missing ⚠️
evaluator/evaluate.go	0.00%	3 Missing ⚠️
evaluator/evaluate_baseline.go	0.00%	1 Missing ⚠️
evaluator/remediations.go	66.66%	1 Missing ⚠️
manager/middlewares/authentication.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1465      +/-   ##
==========================================
- Coverage   65.00%   64.98%   -0.02%     
==========================================
  Files         114      114              
  Lines        7810     7812       +2     
==========================================
  Hits         5077     5077              
+ Misses       2208     2206       -2     
- Partials      525      529       +4     

Flag	Coverage Δ
unittests	64.98% <60.56%> (-0.02%)	⬇️

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[niyazRedhat]

/retest

[niyazRedhat]

/retest