Resolving CLI reference error due in exception handling

[nharper285]

Summary of the Pull Request

What is this about?
Several commands were outputting a json variable referenced before assignment error. The issue has been resolved with this PR.

PR Checklist

• Applies to work item: OneFuzz CLI 6.3.0 failed with: templateERROR:cli:command failed: local variable 'json' referenced before assignment #2877
• CLA signed. If not, go over here and sign the CLI.
• Tests added/passed
• Requires documentation to be updated
• I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx

Info on Pull Request

What does this include?

Validation Steps Performed

How does someone test & validate?

[codecov-commenter]

Codecov Report

Merging #2903 (7628ab8) into main (f12319b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #2903   +/-   ##
=======================================
  Coverage   28.04%   28.04%           
=======================================
  Files         302      302           
  Lines       35802    35802           
=======================================
  Hits        10041    10041           
  Misses      25761    25761           

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